Lap timer for M3/M4

[TomsM4]

Now that BMW has discontinued the lap timer for 2015-2021 M3/M4, has anyone found another lap timer that works with BMW connect (I have a 2018 M4 competition)?

[FrankMstein]

Just go Race Chrono or Harry's.

[TomsM4]

Thanks! I'll check them out.

[Theruleslawyer]

Originally Posted by TomsM4

Thanks! I'll check them out.

I used track addict for a bit. Most are fine for overall lap times. Accurate within a tenth or so. If you want segment data around the track you more than likely need a stand alone gps box or a dedicated device. Phone gps is typically 1hz. Dedicated units are 10-20hz

Just be wary of the extra data these app will show you on the basis of 1hz gps.