PUMA SpeedCat has been my favorite for probably 25-years. They came out with a remake of it called the SpeedCat LS and it is faithful to the original. I still wear my SpeedCat BMW/Williams F1 shoes, even though they are worn flat now. I have several pairs of SpeedCats and Future Cats and wear these nearly every day, all-day at work. The pedal box on my E82 6M is small for my size 11 feet and these work perfectly.
With SpeedCats it is best to go at least a half-size up from your normal shoe size, if not a full size!