My Dad bought my Mum one and they gave it to me when I passed my test, that speedo needle bounced around so much you could easily achieve 0 to 60 in the blink of an eye!!! I got pulled up one day in a 30mph zone and the copper asked me if I had any idea how fast I was going, I told him that unfortunately I had no idea, needless to say he didn't see the funny side of things!! Happy days.