only 9/100ths difference in 0-60 times after 74,000 miles

[Sam1]

Trading in the car tomorrow for a new M3P, figured I'd do a final dragy in the same exact setup. 2019 M3P stealth, 19" with continental all seasons. The run today was on the same exact setup, with tires that are 2 years old. first runs were done with +/- 10,000 miles on the odo, today it has right over 74,000 miles. Times went from 2.97 seconds to 3.08 seconds. Never in my life have I seen a car be so consistent for such a long time. The 11/100ths difference could easily be explained away with the higher surface temps, or glazed over tires from sitting in storage for 18 months. Runs were done at the exact location both times.

<edit typo 11/100ths, not 9/100ths>

 

[JoeRasputin]

What app are you using? Thanks.

 

[Sam1]

What app are you using? Thanks.

Amazon.com

 

[JoeRasputin]

Amazon.com

Thanks. Pro material. Isn't there anything less expensive for the rookie amateur?

 

[Sam1]

Thanks. Pro material. Isn't there anything less expensive for the rookie amateur?

$150 is dirt cheap for this type of device. No app is going to be consistently accurate because your phone's GPS wasn't designed to measure speed in thousandths of a second or distance by inches.