No matter how well a car performs, there’ll always be a tuner that makes it even better. Follow us: We can all agree on one thing; the German auto wizards over at AC Schnitzer aren’t playing around.

Whereas do-it-yourself gearboxes are usually cheaper (or at least a no-cost option), BMW will charge $3,500 to fit a stick into the 2025 Z4 M40i. But the transmission is packaged with a few other ...

When BMW updated the Z4 roadster last year, none of the tweaks were particularly shocking — in fact, they were quite modest, limited to things like little fascia tweaks and new colors. Instead, what ...