BMW 420i Cabriolet - Excellent Condition - 35,800 miles For sale is my BMW 4 Series 420i Cabriolet in sleek black with matching black interior. The car is in very good condition inside and out, extremely well looked after and maintained. I've owned it for the past five years and everything works perfectly no faults at all. It has just 35,800 miles on the clock (still in light use for short trips like shopping). Very clean, reliable, and drives beautifully. A great example of this model. Comes with two keys. All paperwork available on request. Serious buyers only, please.