New BMW three-cylinder diesel engine is very impressive in latest Mini, thanks to excellent economy, superb torque and low CO2. It's competitively priced, too
Open-top A3 is now bigger and better balanced, plus it impresses with its comfortable ride and quality interior; but 2.0-litre diesel is a better companion than 1.4-litre petrol tested here
The BMW 435d xDrive M Sport isn't quite the all-weather, frugal, M-car alternative, but this all-wheel-drive 4 Series possesses distinct appeal, at a price