Niche sports car manufacturer Wiesmann drops the V10 5.0L BMW engines of the MF4 and the MF5 to replace it with the twin turbo V8 4.4L direct injection BMW engine running on petrol.

The new engine can give out 407 horsepower while at 5,500 through 6,400 rpm which means that the MF4 can blast from 0 to 60 mph in 4.6 seconds and have a top speed of 180.8 mph.  The new MF4 engine is more economical and has a lower carbon dioxide emission.

The MF5 will also be relying on the same engine but it will be getting a modified version that outputs 555 hp bringing the car from standstill to 60 mph in 3.9 seconds and give it a top speed of 193.2 mph. The new powerplant makes the MF5 the most powerful Weismann in history.

The more powerful engine does not mean that owners will have to shell out more for fuel. The new BMW engine has a mileage of 21.9 miles per gallon.

The new BMW M engines will really come as a good surprise for those who think that the vintage styled Wiesmann supercars will only have a 4-cylinder or a more potent straight six powerplant.

Meanwhile, the MF3 will retain its straight six 3.2L engine which now compliant with Euro 5 standards.