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Mercedes E55 AMG estate

If the Mercedes E-Class was meant to be a subtle, elegant and civilised cruiser, someone in Stuttgart forgot to send the memo to AMG - as the German giant's tuning arm has just unleashed the 476bhp E55 AMG.

This model brings the number of 400bhp+ cars in Merc's stable to 14! The E55 AMG has refinement, practicality and supercar pace.

If the Mercedes E-Class was meant to be a subtle, elegant and civilised cruiser, someone in Stuttgart forgot to send the memo to AMG - as the German giant's tuning arm has just unleashed the 476bhp E55 AMG.

Unlike its illustrious predecessor, the new car is supercharged, and develops 34 per cent more power and 32 per cent more torque than the old-shape model. The E55 feeds its power through the rear wheels, and delivers 700Nm of torque between 2,650 and 4,500rpm. In other words, it's devilishly quick.

But speed isn't the E55's only trump card - the car has been designed for owners who like their driving to be dynamic. With adaptive air-suspension and Sensotronic brake control, which reacts to inputs by increasing brake pressure where necessary, it handles remarkably well for such a big machine.

Our only criticism concerns the gearchange. AMG's Speedshift semi-auto is fitted as standard, and if you use the steering wheel-mounted paddles, it's a fast and entertaining box. But in fully auto mode, the 'Active Downshift' doesn't always change when you'd expect, leaving you with no option but to be late on the brakes. Yet the AMG isn't overtly sporting. It may have the power and pace of a Ferrari 456M, but on fast roads it's as refined and as comfortable as any other E-Class. Even the styling is subtle - the 18-inch alloys, quadruple tailpipes and prominent front air-dam let you know this is no normal Merc, but only a tiny 'Kompressor' badge on each front wing hints at what's under the bonnet. Maybe AMG did see that memo, but was hoping nobody would notice...

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