[s-cars] Extremely Good Gas Mileage

[R. Mair]

I find it very hard to believe these cars get anything close to 30mpg,
chipped or not. My 1994 S4, chipped only gets high teens at best, during
winter, slighter higher in summer and i have a fairly light foot on
acceleration. One factor no one has thrown in was how accurate your speedo
is. My MPG is calculated via GPS, something which is far more accurate than
any speedo. Typically, my odometer shows 103 miles per 100 actual miles
traveled and this number has varied by as much as 1.5 miles. Not that that
is going to throw my numbers off too far. Just something to consider.