Do you have a Son I let my just 18 year old son have it for the day Happy birthday well my nice 123.4 changed to 141.9 , Were the heck did you do that well dad theres this road ........ Then I noticed my o-60 went from 5.1 (first and only attempt) went down to 6.2 well dad the tires kept spinning?? I,ll be in the car when he drives from now on...