I guess that once a 240i has made a dash for it it’s a bit late to try to get some diesel saloons in front of it
The problem for the 240i driving getaway driver is that the M62 isn’t a race track, it’s a motorway, plus the Police have lots of cars and Helicopters. According to ‘Cop Car Workshop’ (yep, a real TV programme) the Police use 330d and 530d, they might be theoretically a little slower than the Police cars, but it’s not going to disappear in a cloud of dust not to be seen again, even on the worlds longest drag strip, it might pull away a bit, but it’s only going to run into a few more down the road.
Criminals mostly just drive as dangerously as possible that the Police give up for their sake and the sake of the public, well they let the Helicopter follow them anyway.