La Mercedes-AMG GT Coupé 4 portes n'est pas une voiture comme les autres. C'est une véritable fusée qui peut délivrer plusieurs niveaux de puissance selon les versions. Dans sa déclinaison la plus ultime, la Mercedes-AMG GT 63 S Coupé 4 portes, elle embarque  un V8 de 4,0 litres qui développe une puissance phénoménale de 639 ch.

Cela est tout à fait suffisant et honorable pour le commun des mortels, surtout sur nos routes où la vitesse maximale est limitée, mais cela n'est pas de l'avis de tout le monde, à commencer par G-Power qui propose aux propriétaires de doper la puissance du moteur jusqu'à 800 ch !

Galerie: Mercedes-AMG GT 63 par G-Power

Pour ce faire, G-Power commence par une reprogrammation du moteur ; cette opération coûte 3595 euros. Le tuner allemand ajoute également de nouveaux turbocompresseurs facturés à 6390 euros, des tuyaux de descente pour 5360 euros, des filtres à air sport pour 238 euros et un système d'échappement en acier inoxydable pour 4850 euros. Tous les prix mentionnés incluent la TVA allemande.

G-Power affirme que ces mises à jour améliorent les performances, le couple et la réactivité du moteur tout en optimisant ses consommations en carburant. Si ce programme vous semble trop invasif ou que la puissance délivrée est trop élevée, G-Power peut brider son système à 750 ch ou 700 ch. Bien sûr, dans ce cas, les prix seront plus abordables.

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PRESS RELEASE G-POWER, G-POWER GP 63 Bi-TURBO G-POWER GP 63 Bi-TURBO: Four-door high-performance coupé based on the AMG GT 63 For over 35 years, the brand G-POWER has been synonymous with firstclass performance tuning that catapults any basic vehicle into unknown realms of power and performance. For many years, the focus was on the M top models from BMW, but G-POWER has long since widened its gaze to become a specialist in AMG optimizations as well. This made obvious sense, firstly because AMG operates in the same sector as M GmbH, and secondly because G-POWER’s corporate headquarters in Bavaria is not only very close to Munich, but also a stone’s throw away from Affalterbach. On top of that, many proud owners of BMWs given the GPOWER treatment also had AMG models parked next to them in their garages, and thus wanted to have these overhauled by their favorite tuners too. The G-POWER power upgrade is available for numerous AMG 63 models, which house ferocious four-liter M177 Biturbo V8 engines beneath their front hoods. Take the AMG GT 63 4-door coupé, for example, which GPOWER has now turned into the GP 63 Bi-TURBO. Customers have the choice between three boost levels: The strongest variant gives the AMG GT 63 a mighty 800 hp of power and a maximum torque of 1,000 Nm, which is made possible thanks to the combination of GP-800 performance software (€3,595*) with new turbochargers (€6,390*) and downpipes (€5,360*) as well as sports air filters (€238*) and a stainless steel exhaust system (€4,850*) by G-POWER. This improves performance, torque delivery and responsiveness and, at the same time, optimizes engine efficiency and fuel consumption. In spite of all this, all factory engine protection and diagnosis functions are left untouched. This maximum power level catapults the GT into the league of thoroughbred super sports cars. The middle level gives the AMG 750 hp and also a maximum of 1,000 Nm, which in this case is down to the installation of GP-750 performance software (€2,995*) and the G-POWER downpipes. Finally, the starter package provides 700 hp and up to 950 Nm, which is achieved simply by GPOWER’s GP-700 performance software (€2,495*). The advantage of all GPOWER upgrades is, firstly, the big-brand level of quality provided by the production process that satisfies the famously stringent German standards. Secondly, they have been extensively tested at high speeds on the autobahn, in other words they have been specifically and explicitly developed and conceived for operation in the absolute full load range. The praise of G-POWER customers speaks volumes: “The car should have been made like this in the first place...” is the prevailing opinion. As a cosmetic upgrade, the G-POWER GP 63 Bi-TURBO sports the company’s own HURRICANE RR forged wheels – which are available in either 20" or 21" (€7,950* or €8,950*, respectively). Furthermore, a second rim model with a filigree multi-spoke design – the HURRICANE RS – is currently under development, which will soon add to the top-quality GPOWER range. *all prices incl. German VAT Further information can be obtained directly from: or by calling +49 (0)8251 860 1100