BMW 4 Series Convertible leaked

This is our first look at the production version of the BMW 4 Series Convertible, after images of the new drop-top leaked online. There are no official details from BMW, those are being saved for the car's public debut at the LA Motor Show next month.

The images surfaced on a blog site and show the convertible alongside the 4 Series Coupe on which it’s based. Like its predecessor, a folding hard-top is likely to be used on instead of a fabric roof, which is stowed away in the boot in these pictures. The images also show the Convertible fitted with an optional bike rack.

• BMW 4 Series Coupe review

The engine line-up from the coupe is expected to be carried over, along with the six-speed manual and eight-speed automatic gearbox options. Three petrol and three diesel variants are likely to be available on the 4 Series Convertible with the entry-level 420d, which uses a 184bhp 2.0-litre diesel engine engine and should return close to 60mpg, expected to account for over 50 per cent of sales.

Sales on the 4 Series Convertible will begin in early 2014 and a slight premium over the coupe version is expected, which starts at £29,200.