I took part at the One Mile Challenge 2021 with my 2018 BMW M2. The factory limiter should be at 250 km/h, but turns out I can do way more. The only upgrade is a new high flow catted downpipe. Tires were Michelin Pilot Spots 4 S and used launch mode on both tries.
1/2 Mile speed: 224 km/h
1 Mile Speed: 268 km/h