BMW's M division has revealed a one-off version of the Z3 fitted with a V12 engine.

Yesterday in a post on Facebook, BMW's M division shared some juicy photos of a one-off BMW Z3 prototype fitted with a massive V12 engine under the hood. This is just one of the many special cars that the M division has made in the past, such as the M8, E34 M5 Convertible, V16 7-Series Goldfish or the M3 Pickup.

There isn't additional info regarding this special Z3, but it's most likely that the V12 engine is a 5.4-liter M73 that churns 326 hp (243 kW / 330 PS) at 5,000 rpm and 361 lb.-ft. (490 Nm) of torque at 3,900 rpm.

It goes without saying why BMW never launched a production version of this V12-powered Z3 but nevertheless it's nice to know that even a large V12 engine can fit in the small and compact body of a car such as the Z3. Hopefully BMW M will reveal some performance figures of this one-off prototype.

Gallery: BMW M squeezes V12 engine in a Z3 prototype

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