It seems an earlier, less polished version: two things I noticed are it doesn't have tehkan superimpressed during demo play and it doesn't show the cup after the high score roll.
ROMs for the main and sub cpu seem quite different, too:
4.bin twc-4.bin 46.334839%
3.bin twc-6.bin 8.215332%
1.bin twc-1.bin 4.968262%
2.bin twc-2.bin 1.641846%
Formerly (un)known as hanamichi on the mameworld.info message boards.