It’s no secret that the team is currently doing major efforts in emulating PC-AT based HW. Grull Osgo in particular is working on California Chase, that is currently more or less working with a “MS-DOS” kludge (you need to type boot after that Win 98 fails to boot). I’ve tweaked the code a little and added an idle skip for it.
Street Games 2 recently started working after some tweaks to the VGA code:
EDIT: added sound to Cali Chase -> https://mamedev.emulab.it/kale/wp-content/uploads/2012/02/cali3.mp3