Infiniti Q45 G50
The unconventional Japanese flagship that prioritised performance over tradition.
- Power
- 278 bhp
- 0–60 mph
- 7.2 s
- Top speed
- 150 mph
- Est. value
- $3k–$30k
About the Infiniti Q45 G50
Launched in 1989 alongside the Lexus LS400, the Infiniti Q45 (G50) took a radically different approach to luxury, eschewing traditional wood trim and chrome for a minimalist, driver-focused aesthetic. Its VH45DE V8 engine was a masterpiece of engineering, featuring variable valve timing and a high redline that allowed it to outperform contemporary European rivals. The chassis, derived from the same '901 Movement' program as the R32 Skyline GT-R, featured a sophisticated multi-link suspension and optional four-wheel steering. While its lack of a traditional grille and avant-garde marketing initially hindered sales, it has since gained a cult following for its robust build quality and sports-sedan dynamics.
Infiniti Q45 G50 specs
The Infiniti Q45 G50 produces 278 bhp (207 kW) and 396 Nm (292 lb-ft) of torque. It reaches 60 mph in 7.2 seconds and has a top speed of 150 mph (241 km/h).
| Make | Infiniti |
|---|---|
| Model | Q45 |
| Generation | G50 |
| Trim | 4.5 V8 |
| Years | 1989–1996 |
| Type | Luxury |
| Body style | Sedan |
| Country | Japan |
| Original price | About $39,000 when new |
| Engine | 4.5-litre DOHC 32-valve V8 |
|---|---|
| Displacement | 4,494 cc (4.5 litres) |
| Induction | Naturally aspirated |
| Power | 278 bhp (207 kW) at 6,000 rpm |
| Torque | 396 Nm (292 lb-ft) |
| Redline | 6,900 rpm |
| 0–60 mph | 7.2 s |
| Top speed | 150 mph (241 km/h) |
| Transmission | 4-speed automatic |
| Drivetrain | Rear-wheel drive |
| Weight | 1,792 kg (3,951 lb) |
| Power-to-weight | 155 bhp per tonne |
Typical figures for the standard car; options, markets and model years vary. Where our specs come from
How much is an Infiniti Q45 G50 worth?
A typical Infiniti Q45 G50 is estimated to be worth $3,300 – $30,000 (about £2,500 – £22,000).
Its original price when new was about $39,000.
Values are directional estimates for a typical example, not appraisals. Condition, mileage, history and specification all change what a real car is worth. Pound figures use the exchange rate of 3 November 2026. How values are estimated
Infiniti Q45 G50 rarity in CarSpot
The Infiniti Q45 G50 is an Uncommon card in CarSpot, with a rarity score of 16 out of 100. Hot hatches and premium sporty cars. An Uncommon card is worth 20 XP.
Each model's tier starts from a 0–100 score based on its value plus its power or production numbers. Once enough players have spotted a model, how often it is spotted can move it up or down one tier. How CarSpot rarity works
Rarity is a collectible game mechanic, not an assessment of real-world scarcity or value.
Infiniti Q45 G50 fun facts
- The Q45's VH45DE engine was officially rated at 278 hp to comply with the Japanese 'gentleman's agreement', but actual output was widely believed to be over 300 hp.
- Early models were famous for their 'buckle' badge and lack of a traditional front grille, a design choice intended to project a modern, high-tech image.
- The Q45a variant featured the world's first production full-active suspension system, using hydraulic actuators to counteract body roll, dive, and squat.