Stunning 2019 BMW 430i M Sport Convertible in Tanzanite Blue one of the rarest colour options available, and currently the only one listed on Autotrader. This car is beautiful both inside and out equipped with BMW's B48 engine, a 2.0L inline 4. It delivers great performance whilst maintaining sensible MPG. As you can see from the pictures the current owner is averaging just over 40MPG. Car is not being daily driven at the moment. If you are looking for a standout convertible for the summer and want a superb balance of performance and fuel economy, look no further.