The Mini Cooper Convertible is the most-affordable car you can buy in India without a roof. Mini Cooper models, in general, offer go-kart-like driving fun. The compact package and the peppy BMW-sourced 2.0-litre TwinPower turbocharged petrol engine makes the Cooper Convertible quite a nimble performer. The Mini Cooper Convertible also looks good and has got some quirky styling bits, both on the exterior and the interiors.