For starters, it's equipped with the £3,200 Performance Pack, adding uprated brakes, firmer suspension, an Alcantara steering wheel and a limited-slip differential - widely agreed to be a must have on the C63.
As it's a post-2009 car, it could have been further enhanced with the £6,000 Performance Pack Plus. This improved the power output of the 6.2-litre engine by 30hp and snipped a tenth off its 0-60 time, thanks to the use of forged pistons carried over from the SLS AMG, new connecting rods, a lightweight crankshaft and a modified ECU.
It comes with a full service history and, according to the ad, the current owner has always run the car on 99 Ron - a definite plus given that, as our Buying Guide advises, the C63 can be particularly sensitive to the fuel it uses.
For a fiver under £22,000, it's an awful lot of bang for your buck.
MERCEDES C63 AMG PERFORMANCE PACK
Engine: 6,208cc, V8
Transmission: seven-speed auto, rear-wheel drive
Power (hp): 457@6,800rpm
Torque (lb ft): 442@5,000rpm
First registered: 2010
Recorded mileage: 39,000 miles
Price new: £54,645
Yours for: £21,995
See the original advert here