Here’s the car that many BMW sources swore the firm wouldn’t build: the folding hard-top 3-series convertible. Caught undergoing night testing in Germany, this prototype shows the car to be close to production. We expect to see it unveiled in the autumn at the Frankfurt Motor Show, although the Touring estate will probably be the next variant on sale. There’s no doubt that the engineering is extremely well executed, with interior space for four people and a very smooth roofline. The 3-series coupé was also caught on test: it’s a substantial-looking car with a high rear deck.