Merc's ride on time

But the facelifted model, driven for the first time by Auto Express, is here at last and goes on sale in the UK next month. Work had started on it almost as soon as the current S-Class was launched, in response to the threat posed by the new 7-Series and Audi A8.

At first glance, you might wonder how the designers have been spending their time, since the car looks virtually identical to the model it replaces, except for new front and rear lights. But, under the skin, the new S-Class has been heavily revised, and offers electronic brakes, improved Airmatic suspension and a new safety system known as PRE-SAFE. Mercedes says this can sense if an accident's about to happen and adjust the seating position and close the windows to provide extra protection to the car's occupants.

Our car, an S350 powered by a new 245bhp 3.7-litre V6, was simply crammed with gadgets which, given that the Mercedes costs ΂£49,810 in basic specification, you would expect. However, what remains a surprise is just how good the car is to drive. Though the ride is ultra comfortable, Mercedes has still managed to ensure that the new S-Class is one of the most agile limousines money can buy.

On bumpy roads, the suspension almost feels like it's lifting its wheels over potholes. The power offered by the electronic brakes is sensational, while the huge car responds swiftly to the slightest throttle input. Despite the challenge of improving the original S-Class, the manufacturer has clearly scored a direct hit. With such an impressive job done, the teams behind the scenes are no doubt already attending to the next-generation car. We can't wait to see what will be achieved.