Two engine variants are offered on the Infiniti EX and include a 316bhp 3.7-litre petrol and a more recent 3.0-litre oil-burner with 235bhp.

Performance for both models is very good. Against its closest rivals, the petrol-powered EX37’s 0-60mph time of 6.5sec is as quick as any rival. With peak torque of 266lb ft arriving at 5200rpm and the full 316bhp not until 7000rpm, it would appear on paper that the EX needs a lot of revs to deliver its full performance. But with 215lb ft of torque available from as low as 1500rpm, the reality is plenty of useful low-down urge. And the typically linear power delivery of the naturally aspirated engine means that the V6 is never left floundering outside of its power band.

Matt Burt

Matt Burt

Executive Editor, Autocar
Big-chested tuneful petrol V6 makes the EX a real enthusiasts' pick

By contrast, the diesel’s 406lb ft means that you can lock the car in fourth gear (roughly 20mph/1000rpm) and dispatch challenging B-roads or motorway sliproads with at least as much ease as in the petrol version. The oil-burner is smooth and quiet even by the standards of the very best V6 diesels, and well matched to its torque converter automatic gearbox, and propels the EX to 62mph in a shade under eight seconds.

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