There were several more "log scaler" SEGA arcade games, most notably Galaxy Force II, Rail Chase, and others. These systems went quite a bit beyond the flat curving road designs of Out Run and Hang-On (said curving road the PCE could easily handle) by composing the road/ground/walls from scaling/rotated sprites. The system used THREE 68000 CPUs in parallel, which is pretty crazy. Here's some info.
http://www.system16.com/hardware.php?id=699Considering how the track is made of BG tiles, I'd say the PCE conversion is pretty good. Compare that to SMS Space Harrier, which is done in the same way.
Tatsujin: I don't really like playing Power Drift all that much, since you feel like you're completely on rails: when you crash, you don't even stop like in Out Run. Your car tumbles while still moving along the figure-8 track or whatever. It's a bit of a mess. Of all the log scaler games, I like Galaxy Force II most of all. It's really amazing for 1988, and it's really fun to play too.