It doesn’t get much more sleeper than this: Hartge’s H50 or in other words, an E90 BMW 3-Series sedan stuffed with the E60 M5’s 5.0-liter V10.

For those of you groaning and moaning about the cars you’re missing out from Europe, this Hartge H50 is said to be the only example in the USA right now out of a total production of 10 sedans (Hartge also made a coupe version) and it comes with a price to match its rarity with the seller asking for $105,000 or slightly below on ebay.

Always according to the seller, the E90 started life as a humble 2006 BMW 325i before being shipped to Hartge in Germany, where the tuner transformed it into the H50 for a cost of around $220,000 including the price of the donor car, which sounds about right.

The far-reaching mechanical conversion included swapping the car’s stock inline six for a beefed up version of the E60 M5’s 5.0-liter V10 rated at 550hp and 390 lb-ft (488Nm) and the transmission for a 7-speed SMG with paddle shifters. Improvements were made to the chassis, underbody and axles as well.

However, for the uninitiated, it looks like your run of the mill E90 on the outside with some modest upgrades like the 20-inch wheels, a front apron, a boot spoiler and quad exhausts – it doesn’t even have the M Sport kit. The only telling addition is the vented front fenders.

The H50 is said to reach 60mph (96km/h) in 4.3 seconds and top out at 200mph (320km/h).

A couple of things we’d suggest to anyone interested in the car would be to check with the buyer about the VIN as the one listed (WBSAK0306J2196244) on ebay traces back to a 1988 E30 M3, whether it can be registered in your state, and, of course, paperwork from Hartge.

While no video was made available by the seller, we found one from another H50 in Germany that you can watch below.

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