The 316bhp 3.7-litre V6 ensures this coupe isn’t just about sporty looks – it’s an absolute powerhouse, with speed building rapidly right across the rev range. The six-speed manual gearbox is slick, although the optional seven-speed auto changes more slowly than the modern-day DSG or dual-clutch systems in rival models, even in ‘sport’ mode or when using the sequential-shift function.
Whether you want to cruise for hundreds of miles or have some fun on twisty roads, the G37 Coupe can do it all. It’s composed along the motorway, yet fluid through tight and sweeping corners alike. Add well balanced handling and nicely weighted steering, and the G37 Coupe is extremely capable. Top-end cars also have a limited-slip differential and rear-wheel steering for even better cornering. However, the firmer suspension of the S model can be rather unforgiving.
The G37 isn’t the quietest of coupe cruisers, but the booming exhaust note – and lovely V6 howl when you step on the throttle - is all part of its fun factor. There’s a little tyre noise from the firmer-riding S, and some wind noise, but it is generally quiet and well-behaved at motorway speeds.
The V6 engine may sound great and accelerate quickly, but it only returns 26.7mpg and its high 248g/km CO2 output puts it in the highest company car tax band. Insurance is also high – group 45 – and resale values are predicted to be well below those of the German-brand coupes.
Much of the G37’s cabin detailing is lifted from cheaper Nissan models, and it doesn’t feel terribly special for a car this expensive; some switches and plastics could be better. However, Infiniti has a very good reputation for reliability and customer satisfaction in the USA, with few problems reported, and the G37 should prove tough and durable despite its cheap superficial finish.
The G37 Coupe hasn’t gone through a Euro NCAP crash test yet, but it comes with six airbags, rear ISOFIX child seat mounting points and traction and stability control as standard. The headrests move forward in an accident in a bid to minimise whiplash injuries, while the bonnet also pops up to cushion pedestrians.
All of the switches and controls are easy to use and there’s plenty of adjustment in the seat and steering column. The instrument binnacle adjusts with the wheel, so you never lose sight of the dials. The rear quarter-light windows give reasonable over-the-shoulder visibility, while it’s also easy to judge where the front corners of the car are.
Anyone bar a basketball player should find a comfortable position in the front, but the rear seats are suitable only for children – the rear window is very close to an adult’s head. Access to the rear seats is easy, though, thanks to the powered, gliding front seats which will automatically return to their original position. The boot is small and shallow, although the rear seats do fold to extend it.
Dual-zone climate control, cruise control, parking sensors, electric seat and steering wheel adjustment, as well as automatic headlights and wipers are found in every model. All bar the entry-level car get leather upholstery, while options include adaptive cruise control and a multimedia pack with DVD sat-nav, an improved Bose stereo and a rear parking camera.