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Monday, November 28, 2022
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Manhart MH3 GTR tunes BMW M3 Competition to 641 bhp

The German tuner Manhart gets hold of the latest BMW M3 Competition and tunes it to create the one-off MH3 GTR. The company gives the speedy saloon comprehensive upgrades to the powertrain, suspension, and styling.

The MH3 GTR continues to use the S58 3.0-litre twin-turbo inline-six. Manhart’s MHtronik auxiliary control unit boosts the output to 641 bhp (478 kilowatts) and 590 pound-feet of torque. This is a healthy upgrade over the factory rating of 503 bhp (375 kW) and 479 lb-ft (650 Nm).

Manhart also offers several exhaust upgrades. The standard setup uses stainless steel pipes with valves to control the sound and exiting out of four 3.9-inch (100-millimetre) diameter tips. The outlets are also available with a carbon- or ceramic-coated finish.

The tuner offers an Otto particulate filter delete with 200-cell catalytic converters, sport downpipes with 300-cell catalytic converters, or a racing setup without cats. However, these parts don’t have TÜV approval for road use in Germany, but Manhart offers the components for export.

The MH3 GTR should handle the road a bit better than the M3 Competition’s already impressive ability. The buyer can select either the Manhart Variant 4 coilovers setup that uses  KW components or just a lowering kit with H&R springs.

Manhart leaves the brakes stock. Although, if the MH3 GTR’s buyer wants to upgrade them, then the tuner is willing to make those tweaks.

The company makes some small tweaks to the M3 Competition’s styling. The MH3 GTR has a dark grey body with lighter grey stripes on the bonnet, rear deck, and boot lid. The body gains carbon parts for the aero flics in the front corners, side skirts, rear lip spoiler, and diffuser.

The saloon rides on wheels with six pairs of spokes and measuring 9×20 inches in front and 10.5×20 inches at the back. They have a satin black finish in these photos, but Manhart can make them a different colour if that’s what the customer wants.

The only revision to the interior is a pair of Recaro Podium front seats with a full carbon-fibre shell. Manhart’s logo is embossed below the headrest.

Manhart’s announcement doesn’t disclose the MH3 GTR’s price. For reference, a 2023 M3 Competition starts at £74,755 with rear-wheel drive or £77,015 with all-wheel drive.

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