We’re all familiar with the BMW M4. It’s the coupe version of the monstrous M3, one of the definitive German super-saloons.

And the M4 Convertible – well, that’s just a recipe to enjoy those super-saloon thrills with a little more wind in your hair.

Now, though, BMW has announced a special edition of the M4 Convertible, the M4 Convertible Edition 30 Jahre.

Ostensibly, this is a celebration of the 30th anniversary of the first convertible M3. Released in 1988, it was supposed to combine the joys of open-top motoring with a racetrack-proven engine and suspension set-up. By today’s standards, it wasn’t fast – its 2.3-litre four-cylinder developed 195 bhp – but car-lovers lapped it up. BMW had originally planned to build 5,000, but, before long, 10,000 orders had been placed.

The new M4 Convertible Edition 30 Jahre won’t be sold in nearly as big numbers – BMW plans to build just 300. That’ll make it very exclusive.

You do get much more power than the original M3 Convertible, though. In this guise, the M4’s straight-six develops a meaty 450 bhp, meaning 0-100 km/h is taken care of in 4.1 seconds.

Now, you can actually get that power from a ‘normal’ M4 Convertible. The Edition 30 Jahre, though, comes with plenty of special-edition trinkets to make you feel like you’ve got a collector’s car. It features the M Competition Package, which bolts on an M Sport exhaust system, adaptive M suspension, and a sportier configuration of the car’s stability control and active M differential. This means that this open-top cruiser should also be a track-day bruiser.

On the outside, you get BMW Individual High Gloss Shadow Line trims for the BMW kidney grille surround, M side gills, model lettering, and forged M light alloys boasting a star-spoke design. The 20-inch wheels come in Orbit Grey matt.

Inside, you get contrasting stitching on the headrests, M floor mats with piping in a contrasting colour, and interior carbon fibre strips. And the lettering “30 Jahre Edition” is imprinted both on the doorsills and the headrests. You also get a signet on the interior trim strip on the passenger side dashboard area showing which number out of 300 the car is.

You can have your Edition 30 Jahre in two colours – either Mandarin II uni, reminiscent of the colour Dakar Yellow, or Macao Blue metallic, which harks back to the colour of the original M3 convertible.

So, what do you reckon? A worthy collector’s item?