The Jaguar XF is everything a top British luxury car should be – great to look at and even better to drive, combining sportiness with high levels of comfort and luxury. It's also helped Jaguar regain its position in the car industry and is easily one of the best executive cars money can buy. The XF is refined and well equipped, with a wonderfully detailed leather-trimmed interior that stands out from the darker cabins of many BMWs and Audis. That said, there isn’t much room in the back for rear passengers and if you intend to spend a lot of time in the back, you'd be better of with a Mercedes E-Class. Jaguar has expanded the previously limited range to now include a smaller, more efficient diesel engine that is very popular with both private and company car buyers. Supercharged XFR and high-performance Jaguar XFR-S petrol models offer incredible performance but equally incredible running costs – so avoid these if you're looking for decent fuel economy. The 2.2-litre diesel engine offers the best compromise, while the 3.0-litre supercharged V6 petrol is terrific – if you can afford to run it.