HRE Performance Wheels 521

The 520 family, with the clutter removed

Side by side the difference is obvious: the 521 forks its arms cleanly and leaves them alone. Without the inner cross-links that thicken the 520, the windows grow into long open shapes and the face reads as a set of slim V-pairs rather than a web. The three-piece build still frames it with a thin polished lip and a ring of hardware.

Open faces show what is behind them, so the 521 is the one to pick if your calipers are painted or your barrel is a contrasting color. It also stays legible at small diameters, where the denser 520 can turn into a gray blur. The choice between the two is really a choice about how much detail you want in the arch.

Series 5, forged 3-piece, offered in 18", 19", 20", 21", 22", 23", 24". Mid-engine and rear-engine sports cars with visible brakes, and clean gloss wraps that do not need a busy wheel to add interest. We've rendered it on 231 cars so far — same studio frame each time, wheel swapped in place.