Highlights Legendary 3.2-litre M54 straight six Low mileage of 36,958 miles Rare two-tone Champagne/Black Nappa leather Extensive service records Long-term dry storage Overview When BMW unleashed the Z4 M Coupe in 2006, it gave the world one of the most characterful sports cars of its era.

A hard-topped sibling to the Z4 M Roadster, it shared Chris Bangle’s newly-introduced “flame surfacing”.

Beneath that divisive bodywork sat serious hardware: the same high-revving 3.2-litre 'S54' naturally aspirated inline-six that powered the E46 M3, here producing 338bhp and sending drive to the rear wheels through a six-speed manual gearbox and factory limited-slip differential.

With 0–62mph dispatched in 5.0 seconds and a rigid coupe shell sharpening the chassis, it was a purist's machine from the outset.

Built in relatively small numbers over a short production run, the Z4 M Coupe has since graduated from underappreciated oddity to genuinely sought-after modern classic.

This particular exam...