SPY: The 2015 Mercedes-Benz C 63 AMG Limousine (W 205) in a fresh set of shots

Mercedes-Benz will introduce the high-performance version of its brand new C-Class, the C 63 AMG, next summer. The model is currently being put to test by engineers in various locations worldwide. The latest spy shots come from Europe (Nurburgring circuit in Germany) and the United States (the Death Valley Desert).

The new C 63 AMG will premiere a brand new engine - the 4.0-litre 8-cylinder BITURBO powerplant, which should be offered in several, different output versions depending on the model it powers. For the 205 generation of the C-Class, this newly-developed V8 unit will deliver a staggering 462 hp and offer more fuel economy.

While the standard specification is only a mere 5 hp better than the current 457 hp value, it is expected the twin-turbo engine performs substantially better than the old, naturally-aspirated unit, which does not run very efficiently and also consumes a lot of petrol. The acceleration from a standstill up to 100 km/h should take close to just four seconds.

We do not have any information on this, but it is possible the new C 63 AMG also gets a special, enhanced performance variant in the form of an S-Model which also comes equipped with the special, sports-oriented AMG 4MATIC traction. Moreover, the overall kerb weight of the car will be lowered by up to 100 kilograms compared to the 204 model series, even though there is more technology than ever before on a C-Class model.

Speculators also indicate Mercedes-AMG could actually return to the old C 55 AMG moniker for the new 205 model series, but this allegation is yet to be officially confirmed or suggested.