Bob Marley was rather fond of BMW's. Although in general, he condemned the Babylon System of seeking material things, he owned quite a few BMW's. Apparently, his fans forgave him driving around an expensive foreign car because it is said he could park his car in any ghetto with the doors open and no one would touch it.
As for why Bob Marley was so fond of this particular style of car, it was because BMW stands for Bob Marley and the Wailers, of course.