BMW Z4 Roadster (09 on) - Review Review by David Ross on 26 May 2009 Last Updated: 01 February 2010 BMW has made some key changes to the Z4 as it looks to make the two-seater more appealing to people considering a Mercedes-Benz SLK or Porsche Boxster. The biggest difference compared to the previous Z4 is the introduction of a metal-folding roof which means it is much quieter at motorway speeds. This also improves security while the cabin has plenty of space, especially in terms of head room. All the engines in the line-up deliver impressive performance and good fuel economy too, while it's usefully practical for a sports car. But perhaps the biggest improvement comes in terms of refinement and ride comfort. This makes the Z4 a coupe convertible that's easy to live with everyday. 4.5 out of 5 Other BMW reviews Summary Facts & Figures Equipment Driving & Performance Comfort Costs Safety & Reliability Buying & Selling Also Consider Company Car Info Gallery 4 out of 5 Safety In Euro NCAP crash tests the previous BMW Z4 scored four stars out of five and this model should perform better. All models get a system called Dynamic Stability Control+ (or DSC+ for short) which combines several features such as traction control, corner brake control and brake fade compensation to help keep the car on the road and stable. The body shell is extremely stiff and there are head/thorax airbags integrated in the side of the seat backrests which inflate in the event of a collision from the side. Like most BMW cars, the Z4 comes with run-flat tyres which allow you to drive for 150 miles (at a maximum of 50mph) with a punctured tyre, although BMW says it has carried out successful tests up to 600 miles. Euro NCAP Provides motoring consumers with a realistic and independent assessment of the safety performance of some of the most popular cars sold in Europe. Visit Euro NCAP for more info 4.5 out of 5 Reliability The original Z4 proved extremely reliable - it was never recalled - and this model should be equally as good. All the engines have been proven in other models and BMW has a good reputation for metal folding roofs thanks to the 3-Series Convertible. Car check problem points Body No problems reported. Engine/Gearbox No problems reported. Other No problems reported. Car Valuations Find used car prices with Parkers accurate car valuations. Find out more BMW Z4 cars for sale We have 55 models like this for sale. Find BMW Z4 cars for sale Previous: Costs Next: Buying & Selling