SpeedSUVs.com — The automotive landscape of 1991 welcomed a unique contender in the premium compact segment with the introduction of the 1991 Infiniti G20. Tested thoroughly to evaluate its performance, luxury credentials, and overall value proposition, this entry-level sedan carrying a retail price of exactly twenty thousand dollars—or “twenty Gs”—challenges traditional American notions of automotive size and luxury. By packing high-end features, an advanced chassis, and a spirited powerplant into a compact footprint, the G20 makes a compelling case that an expensive small car can offer far better value than a larger, more wasteful vehicle at the same price point. This philosophy of premium packaging in a smaller footprint forms the cornerstone of Infiniti’s strategy as it attempts to carve out a distinct identity in a highly competitive market.
Market Positioning and the Luxury Dealer Network
The introduction of the G20 represents a strategic move by Infiniti, the luxury-vehicle division of Japanese automaker Nissan. Priced at approximately half the cost of Infiniti’s flagship Q45 supersedan, the G20 serves as the entry point to the brand’s premium lineup. This pricing structure addresses the natural market tension between the consumer’s desire for large, fast executive cars and the practical need for smaller, more efficient, and highly maneuverable vehicles. While in other global markets this vehicle is sold under a standard Nissan badge with far more spartan trim levels and a significantly lower price tag, Infiniti has elevated the vehicle for the North American market to compete directly with established luxury marques.
The market for premium, small-displacement vehicles has seen significant growth, with competitors like BMW and Mercedes-Benz commanding prices up to $30,000 for compact models that often feature less efficient packaging than the G20. Infiniti’s entry into this segment places it alongside rivals such as Acura, Lexus, Audi, and Honda. This competition takes place on a very specific, narrow segment of the automotive market, especially in the United States, where large pickup trucks and mid-size family sedans remain the dominant volume sellers across major dealership rows. To support the G20 and its larger stablemates, Infiniti operates through a nationwide network of 78 dealers, with concrete plans to expand that dealer network to 108 locations by the year 1992. This expansion reflects the brand’s commitment to establishing a permanent, high-service footprint in the luxury landscape.
Exterior Styling and Aerodynamic Efficiency
Visually, the 1991 Infiniti G20 employs a conservative yet highly aerodynamic design language that successfully avoids the need for aggressive or uncouth aerodynamic body add-ons. Its smooth, flowing lines and integrated features result in a remarkably low drag coefficient of just 0.30. The front end of the vehicle is designed to minimize aerodynamic obstruction, featuring a low nose that guides air smoothly over the hood. The oblong headlights, while not visually startling, serve to emphasize the physical width of the front fascia.
Along the sides, the G20 showcases an impressive level of detail and build quality. The side windows blend almost seamlessly with their surrounding trim and B-pillars, creating an elegant, unbroken elliptical shape. At the rear, blocky taillights frame a trunk lid designed with a low lift-over height. This configuration conceals a deep, flat cargo area that provides surprisingly generous luggage capacity.
However, the exterior design is not without its minor aesthetic drawbacks. The wheel wells are designed with a substantial amount of open space, which can make the standard alloy wheels and Bridgestone tires appear somewhat undersized or even toylike by modern styling standards. Despite this, when viewed from a three-quarter angle, the equipped Michelin MXV3 195/60HR-14 tires mounted on six-inch wide rims provide the sedan with a more grounded, substantial stance on the road.
Interior Design, Space Management, and Comfort
Step inside the cabin, and the G20 immediately impresses with its aesthetic appeal and efficient space utilization. Infiniti kept the cabin relatively narrow to maintain a tidy exterior profile and minimize the vehicle’s frontal area, yet the interior layout maximizes every available inch of space. Built on a 100.4-inch wheelbase with an overall vehicle length of 175 inches, the 2,829-pound sedan manages to deliver exceptional legroom for both front and rear passengers.
The interior architecture benefits greatly from a “cab forward” design characterized by short front and rear overhangs. This layout translates the inherent packaging advantages of a front-wheel-drive platform into genuinely usable passenger space. As a result, four six-foot-tall occupants can fit comfortably inside the G20 without feeling cramped or crowded. The rear seats are designed with generous thigh support and ample foot space underneath the front seats, fulfilling Infiniti’s design goals for passenger comfort.
The aesthetic treatment of the cabin features a tasteful combination of caramel-colored leather upholstery contrasted against a milk-chocolate-colored dashboard and door trim. The luxury feel is further enhanced by a velour headliner that extends down the roof pillars. However, buyers should note that opting for the power sunroof—one of the few available options alongside leather seats and a four-speed automatic transmission—results in a bulging headliner that takes a noticeable bite out of available headroom.
The front seats feature substantial side bolsters that provide excellent torso support during spirited driving without compromising long-distance cruising comfort. While the seat adjustments are entirely manual rather than power-operated, they function smoothly and allow drivers to easily find an optimal driving position. The steering wheel, wrapped in thin leather, can feel a bit low for taller drivers. Although a column-mounted lever allows for height adjustment, setting the wheel to a comfortable position can sometimes cause the rim to partially block the driver’s view of the speedometer and tachometer, particularly the critical 3,000 to 7,500 rpm redline range.
Powertrain Engineering and Performance Metrics
Under the hood, the Infiniti G20 is powered by Nissan’s highly regarded 2.0-liter, sixteen-valve, double-overhead-cam (DOHC) four-cylinder engine. This aluminum block and cylinder head powerplant features port fuel injection and pent-roof combustion chambers, producing 140 horsepower. This is the exact same high-revving engine that delivers thrilling performance in Nissan’s enthusiast-focused Sentra SE-R and NX2000 models.
In terms of straight-line performance, the 140-horsepower engine propels the 2,829-pound G20 from 0 to 60 mph in a respectable 8.7 seconds, on its way to a drag-limited top speed of 123 mph. When it comes to deceleration, the four-wheel disc brakes, supported by a standard anti-lock braking system (ABS), perform flawlessly without fade or instability, bringing the sedan to a complete stop from 70 mph in 180 feet.
While the engine provides ample power and a lively feel, it does exhibit some refinement issues at higher engine speeds. Unlike some competitors that utilize balance shafts to cancel out second-order vibrations, this 2.0-liter engine lacks such mechanical counterweights. As a result, engine noise and coarse vibrations intrude into the cabin at highway speeds and become highly noticeable when the driver pushes the engine toward its upper RPM limits. In comparison, the lighter Nissan Sentra SE-R enjoys a 235-pound weight advantage, allowing it to deliver quicker acceleration. However, the G20 justifies its $7,000 price premium over the Sentra SE-R by offering a vastly superior level of overall ride comfort, cabin luxury, and sophisticated styling.
Chassis Architecture, Suspension, and Handling
The true highlight of the 1991 Infiniti G20 lies in its sophisticated suspension architecture, which is directly responsible for the car’s outstanding agility and ride resilience. Infiniti engineers equipped the front-wheel-drive G20 with a front suspension layout adapted from the design used in the high-performance Nissan 300ZX sports car.
This advanced system features a unique two-piece articulating hub coupled with unequal-length control arms. This configuration provides superior camber control during cornering, keeping the outside tire perfectly square with the road surface. By maintaining an optimal tire contact patch, the suspension maximizes lateral grip and effectively controls understeer—a common handling trait in front-wheel-drive vehicles that would otherwise require an impractically long upper control arm to resolve. On the skidpad, this setup allows the G20 and its Michelin tires to cling to the pavement with a lateral acceleration grip of 0.81 g.
On the road, the G20 displays a highly agile and eager character, responding instantly to driver inputs. The suspension absorbs road imperfections with impressive resilience, preventing harsh impacts from unsettling the chassis. However, the steering system does not transmit a high level of road texture directly to the driver’s hands; instead, the driver hears the road surface more than they feel it. Furthermore, the G20 is not a natural “line-finder” that automatically guides itself along the perfect arc through a corner. Drivers must remain attentive and active, though the chassis remains incredibly light on its feet and highly communicative through the “seat of the pants,” providing the necessary feedback to confidently explore the car’s handling limits.
Comparison with the Nissan Maxima SE
The G20’s superior handling balance and agile chassis make it a preferred choice for enthusiastic drivers, even when compared to larger vehicles within the Nissan family, such as the Maxima SE. While the Maxima SE benefits from a smoother, more powerful V-6 engine, its larger physical dimensions and heavier curb weight result in a portlier, less wieldy driving experience.
Under hard driving, the Maxima SE exhibits significant understeer and can feel floppy and unsettled when pushed through tight corners. In contrast, the lighter and more compact G20 handles cornering transitions with precision and composure. The G20 demonstrates that a well-tuned, lightweight chassis with advanced suspension geometry can deliver a far more rewarding and controllable driving experience than a larger, more powerful sedan with less sophisticated handling dynamics.
Ergonomic Quirks and Comfort Systems
Despite its many strengths, the 1991 G20 does have a few minor ergonomic flaws and electronic shortcomings that detract from the overall luxury experience. One notable issue is the logic of the windshield wiper controls on the steering column stalks. In an illogical layout, the driver must flick the stalk downward to activate the wipers and then further downward to increase their speed, which runs counter to intuitive design conventions.
Additionally, the cruise control system features slow electronic processing and sluggish throttle reactions. The system samples and adjusts the vehicle’s road speed so slowly that the set speed can fluctuate by as much as 15 mph in hilly terrain. This lag in throttle response and speed maintenance can be highly frustrating for drivers accustomed to the precise, immediate cruise control systems found in contemporary German and American luxury vehicles.
On a positive note, the G20’s air conditioning system performs exceptionally well, delivering consistent cabin temperatures and an abundant flow of cool air through well-placed, ample dashboard vents. The overall dashboard layout is practical and user-friendly, placing vital controls within easy reach. However, the standard AM/FM/cassette four-speaker audio system has its limitations; when the volume is turned up, the tweeters suffer from distortion, producing a harsh sound that cannot be corrected by adjusting the audio knobs.
Conclusion and Verdict
In conclusion, the 1991 Infiniti G20 successfully proves that a premium, well-engineered small car can deliver exceptional value, sophistication, and driving enjoyment. With its agile handling, advanced 300ZX-derived front suspension, highly efficient interior packaging, and attractive styling, the G20 represents a compelling alternative to larger, less efficient premium sedans. While it suffers from some engine harshness at high RPMs and minor electronic quirks, the G20 delivers a level of tactile quality and driving dynamics that buyers can readily see, feel, and enjoy. As a pioneer in the entry-level luxury segment, this compact sedan demonstrates that less can indeed be more, offering a highly refined driving experience for those willing to pay for premium engineering in a compact package.
