Conundrum alert gearheads! Does your lust for diesel outweigh your desire for speed? Is a sexy BMW drop-top more or less sexy when you drop in a more powerful motor for a top-o-the-line diesel fourbanger? Would you rock AC Shnitzer's 99d concept car?

GRiP Magazine decided to test three cars (Challenger SRT8, Techart Magnum, MTM TT-RS) against a Schnitzer-tuned BMW 123d police car by robbing a bank three times. We're certain this is fake, but you never know mit ze Germans.

The death of the Lamborghini Gallardo Italian police car means there's room on this Earth for another boutique-built cruiser, enter the AC Schnitzer ACS1 2.3d, a BMW 123d tuned for police duty. Yes, there's an obnoxious spoiler on the back.

AC Schnitzer has plied its tuning skills on the latest iteration of the BMW Z4 and produced a car with more aggressive styling and a most welcomed 54 more horses. It'll look great sitting outside the spa.

German tuner AC Schnitzer has plied its craft upon the Mini Cooper S Convertible, adding fender flares, more "powah," a limited-slip differential and adjustable suspension. Basically it's a JCW Mini in extravagant duds.