My Zink that I run in SOVREN vintage in the PNW. We run pre 70 monoposto rules, single port, 1200cc, built engines that aren't too exotic run about 55hp I believe. There are certainly faster cars out there but no closer racing and no better group of guys to do it with. Oh, and no cheaper way to go vintage racing which is becoming more and more of a concern for me. I thought when I got in to this sport I was going to build up a 912 or 911 and still have that project car but I don't think I could afford that over time with the cost and frequency of engine work.