[Bill Douglas]

I changed my speedo to a kms one and it reads about 10% too fast. Whereas the old one, a mph one was correct. I think Fishcop is using my old one on his car as he was driving off his rev counter.

We have friendly speed traps (ones that show you how fast you are going without a big ugly cop writing you a ticket) so I know exactly how the 911 and the Corolla read. Interestingly both are wrong by the same percentage.