all these times were set at different times of the year, at different locations, with different surfaces and with different drivers, there isn't any real constant between them apart from the distance travelled. but i keep coming back to the this, the driver is by far the biggest variable! we all may think we're good drivers but i see far too many guys thinking just because they floor it and change gear at a certain point, that they are the next senna, its not that simple! and if its your first time doing 1/4 mile times, then book an FIA approved strip someday and go testing, then once your times become consistent, i.e, varying by a few hundreths, you will know what time your car is capable of. it would be a lot easier if the cars could be set up like scalextric cars and sent down the track as fast as they can go..maybe someday..