Cabrio keeps fascinating grille and other styling touches from the concept car.

Little by little, the new BMW Z4’s camouflage is peeling off to give us a better look at what to expect from the final production version. Previewed last year by the concept of the same name, the all-new roadster has been caught off-guard by our agile spy photographers while undergoing testing on public roads.

At the front, we can see most of the headlight design remains faithful to the concept car from mid-2017. It’s the front grille that catches attention due to its intricate pattern similar to what the concept had – but without the chrome accents. The shiny finish could still make it to the road-going model as BMW might decide to offer multiple versions of its corporate grille depending on the trim level.

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What’s a little bit unusual about the prototype is the colour scheme – the camo-free section of the bonnet reveals a silver paint and the A-pillars are black, while the side skirts and the mirror caps are red. Taking into account that this is only a test vehicle and not the final car, it doesn’t really matter a great deal that the car has a bit of a harlequin theme going on.

Moving at the back, this Z4 riding on winter tyres is showing off a large section of its rear lights, which may or may not be OLED. Either way, these look quite cool and are in line with those of the concept car before it. An integrated rear spoiler with a built-in third brake light is noticeable, as are the dual exhaust tips suggesting it might be a sportier version of the car. Obviously, the previous model’s hard top will make way for a lighter fabric roof just like the original Z4's.

2018 BMW Z4 spy photo
BMW Z4 Concept live in Frankfurt

Speaking of a beefier version, BMW has recently hinted it might develop a go-faster Z4 M Performance model, but a fully fledged M version is not on the agenda – at least not for the time being. The supposed M40i is said to have a turbocharged 3-litre straight-six good for a healthy 335bhp or even 385bhp with the Competition Package, but this is only a rumour at this point.

Gallery: 2018 BMW Z4 spied with less camo