BMW Hartge Spirit S3-3.5

Performance upgrades from German tuner Hartge create BMW M3 rival from base 335i.


When a tuning company decides to play with a car that’s essentially excellent, there’s a very real danger that the core qualities that made the standard car so good will be sacrificed for the sake of extreme power outputs and a super-size alloys. So you can imagine our scepticism when the evo car park resonated to the deep-chested rumble of the new Hartge S3-3.5.

Nothing against Hartge, you understand. Indeed, from experience we know it creates some of the most thoroughly considered conversions in the industry. And yet, knowing how silky and understatedly stonking the biturbo BMW 335i it is based upon is, we couldn’t help but wonder what this re-interpretation would be like.
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SevorbeupstryIsBack - 6/4/2007 4:33:22 PM

+1 Boost

"However, it’s beneath the svelte two-door body that Hartge has really gone to town. As tested, the S3-3.5 currently develops 360bhp and 328lb ft, thanks to a re-map of the motor’s ECU. The engine work is still in the final stages of development, though, and will eventually run sports catalysts and possibly an intercooler, lifting power and torque outputs to 381bhp and 336lb ft – a thumping gain of 79bhp and 41lb ft over the standard 335i."

This is one hell of an engine.