1990 Infiniti M I Coupe (F31) Dimensions, Size & Specs

The 1990 Infiniti M I Coupe has a width of 1690 mm (66.5 inches), which is moderate for coupes from this era. This width provides a stable and confident driving experience, contributing to good road grip and handling characteristics. However, its relatively narrow width compared to modern cars also makes parking in tight spots easier, especially in urban environments, while maintaining enough cabin space for comfort.

The Infiniti M I Coupe weighs approximately 1512 kg (3332 lbs) in curb weight. This weight contributes to a balanced feel with a solid road presence, offering stability at speed and smooth handling. While heavier than smaller sports coupes, this weight enables enhanced comfort and ride quality by absorbing road irregularities and providing a planted feel, which was a hallmark of luxury coupes in the late 1980s and early 1990s.

Yes, the Infiniti M I Coupe (F31) should fit comfortably into a standard residential garage. With a length of 4795 mm (approximately 4.8 meters or 15.7 feet), width of 1690 mm (1.69 meters or 5.54 feet), and a height of 1380 mm (1.38 meters or 4.53 feet), it is compact enough to fit in most single-car garages. Standard garage lengths start around 5.5 meters (18 feet), offering sufficient clearance for the car and additional space for movement.

The 1990 Infiniti M I Coupe comes equipped with 15-inch rims and tire sizes of 215/60 HR15. These sizes provide a good balance between comfort and performance. Tires with a higher sidewall profile like 60 in this case tend to soften the ride by absorbing more road shocks, contributing to a comfortable cruising experience typical of luxury coupes. The 15-inch rims were standard for performance and offered good grip, handling, and braking performance during that period.

At 1380 mm (54.3 inches) tall, the Infiniti M I Coupe is relatively low-slung, which enhances aerodynamic efficiency by reducing drag and wind resistance. This height contributes to better high-speed stability and fuel efficiency compared to taller vehicles. Regarding cabin space, the lower roofline emphasizes a sportier coupe profile, which may slightly limit headroom for taller passengers but also provides a stylish and sleek driving environment favored by coupe enthusiasts.

The Infiniti M I Coupe (F31) was derived from the Nissan Leopard JF31 and marked a shift toward a more luxurious and performance-focused coupe under the Infiniti brand. Compared to its predecessor, it retained a similar length around 4.8 meters but featured a distinct design emphasizing a luxury aesthetic with sharper lines and refined styling. Dimensions such as width and height were carefully balanced to improve handling and cabin comfort, making it more competitive in the luxury coupe segment at that time.

Compared to other luxury coupes of the early 1990s, such as the BMW E24 6 Series or the Mercedes-Benz W124 coupe variants, the Infiniti M I Coupe has a competitive length of 4795 mm (188.8 inches) and a relatively narrow width of 1690 mm (66.5 inches). Its curb weight of 1512 kg (3332 lbs) is also within the typical range for premium coupes of that era, balancing luxury features with performance. The Infiniti’s size and weight emphasize comfort and refined handling, positioning it well within its class.

The Infiniti M I Coupe (F31) is a two-door coupe generally designed to seat four occupants comfortably, with two front seats and a rear bench often suitable for two passengers. The compact yet elegantly designed interior provides a driver-focused layout. Although the rear seats offer moderate legroom and headroom due to the sloping roofline, typical of coupes, the vehicle balances style with reasonable passenger comfort for short to medium rides.

The Infiniti M I Coupe was originally equipped with 15-inch rims paired with 215/60 HR15 tires. These sizes were common for luxury and sports coupes in the late 80s and early 90s, offering a good balance of ride comfort and handling. Today, these sizes are still readily available, making maintenance and tire replacement convenient and cost-effective. Enthusiasts might also choose to upgrade to modern tires for improved grip and safety while retaining the original rim size for authenticity.