As German as GeigerCars is, they know a thing or two about tuning American cars. No surprises then, as the company shows off its latest best from the west creation, a Dodge Challenger-based muscle car using the HEMI V8 to power itself. It's the SRT 8's soul that it comes with, that 6.1-litre V8 which produces 425hp/ 317kW off the showroom floor.