It may well be that this Mercedes-AMG S 63 convertible is the world's hardest now.
Since Mercedes has "only" double-powered 4-liter V8 in its largest car, tuning companies often come back to older models.
The German Posaidon also took over the previous generation Mercedes AMG S 63 convertible. In this case, 5.5 liters is the V8's bullet volume, so there are more options for the engine to blow. They did this and made a 6.3-liter block from the original, with a new turbocharger, suction system, bearings, increased compression values. The result is + 420 hp and 500 newton meters in comparison to the factory data, resulting in a 1005 horsepower and 1400 newton meters.
It's just under 2.9 seconds at 100, and its top speed is 350 kilometers per hour.
Such a conversion may approach the original car's price, but the Germans do not provide accurate data if someone wants to buy one and then tell him in person.
(Source: hvg.hu / photo: Posaidon)