First proper long run today in the 2007 Z4. Nottingham to Heathrow and back via M1- A43 - M40 - M25. Had the roof down the whole way back. Averaged 32mpg. Car never missed a beat 
A bit of a long and tiring drive compared to the 640 but more fun!
A bit of a long and tiring drive compared to the 640 but more fun!
