A magnet for car enthusiasts, Motown (in mid-winter) is the chosen venue for BMW to pull the covers of one of its most anticipated new models.

The BMW 3 Series Convertible is reinvented and presented with a folding metal hardtop for the first time. It is the sleekest rendering yet of the new generation 3 Series design.

The new car has a low and smooth shoulder line that belies the capacious storage compartment that hides the folded roof as well as accommodation for luggage.

The new BMW 3 Series Convertible provides a dynamic driving experience, enhanced by the choice of travelling fully enclosed in a snug coupé, or open to the elements enjoying the rush of the wind and a the fragrances of the countryside.

With a body stiffer than the previous 3 Series Convertible, the new model comes with a choice of 160 kW 325i straight six magnesium-aluminium engine, or the new top of the range all-aluminium Twin Turbo 225 kW engine in the 335i.

It takes just 22 seconds for the fully-lined retractable hardtop to unfold itself from behind the rear seats. The three-piece lightweight steel roof provides both superior sound insulation and extremely large windows for excellent visibility.

Opening the roof is a full second faster than closing, and once stowed, the boot retains 210 litres of luggage space.

In addition, the rear section of the seat backs fold flat allowing a through-loading system that means bulkier items can be carried securely.

The European market launch of the new BMW 3 Series Convertible will be on 24th March 2007 – coinciding with the European launch of the new BMW X5, which is also on display at the NAIAS.