The German tuner Manhart gets ahold of the BMW M3 Touring to create a speedy wagon that makes 641 horsepower and 590 pound-feet (800 Newton-meters) of torque. That's a healthy upgrade over the stock output of 503 hp and 479 lb-ft.
The power improvement comes in part from Manhart's MHtronik control unit. There's also an overhauled exhaust that Manhart sources from the company Remus and uses HJS sport downpipes.
