BMW Compares New P48 Engine In the M4 DTM With the M121 In the 2002 TI
28 Apr 2019, 15:18 UTC · By: Mircea Panait / The turbo pioneers return to their roots, comparing the P48 engine in the M4 DTM for 2019 with the M121 turbo in the 2002 TI from 50 years ago