Originally Posted by metal matt
speedo was bang on at 35, 40 and 50 but 1 mph over at 60 and 70.
Doesn't sound too bad at all! For the speedo - do you mean it was reading under - i.e. the car was doing 70 - but reading 69? I thought car speedos typically exaggerated anyway - i.e. the car would be doing 70 - but the speedo would read up to 10% over - i.e. up to 77...?