IN THIS FEATURE First ever Lexus diesel Better-looking than the 3-Series Competitive equipment levels Diesel is crucial to Lexus Hugely accomplished chassis

Compared to competitors like the BMW 320d, the Lexus is a good deal slower to 62mph, too, at 8.9secs. And - unlike the competition from BMW, Mercedes and Audi - there isn't an automatic option for the diesel because, says Lexus, the volumes are too small to justify engineering an auto 'box to work with this engine and a rear-drive platform (versions of this engine will be seen on Toyota front-drivers like Avensis and Verso).

The IS220d claws back considerable ground when the roads begin to challenge with fast sweepers and snaking switchbacks. The six-speed manual gearbox means you should never find yourself looking for a non-existent ratio at the wrong time - max torque of 295lb-ft at 2,000rpm helps here, too - and you can really make swift, enjoyable progress across country.

The chassis is also hugely accomplished, with body control up there with the best, along with steering feel and feedback that is intuitive and natural, even though this is an electrically assisted setup. The only downside is a low-speed ride that feels a bit too firmly damped.

Offers a stylish alternative to German cars

For many buyers, the fact that the IS220d offers a stylish alternative to the default German brigade will count for enough to overcome any concerns over refinement (and the lack of an automatic gearbox). Plus there's no question that the Lexus ownership experience - just check out JD Power owner surveys - is among the best there is. Your fleet manager will absolutely love this thing, too.

We're just disappointed that, having set the bar so high, Lexus has faltered in the one arena where we've come to expect a perfect 10.