I autocross a red 1990 Mazda Miata, and do some open road course track days at Heartland Park Topeka, and Hallett (Okla) and MAM in Iowa. I've taken the Miata down the strip at KCIR, but I'm a bigger fan of turning corners in it. Miata mods are mainly suspension related.
I also have a 2003 Dodge Ram 1500 Quad Cab. "Yeah, it's got a hemi". :D I hope to run it at KCIR sometime soon. Truck mods include a drop-in K&N filter, folding bed cover and Line-X over the rails liner. I'm resisting the temptation of a SuperChip, headers, CAI, etc. This truck is awesome the way it is.
We also have a silver '99 Dodge Avenger, 3.0 v6 automatic. Stock except for some chrome wheels. (I did a track day in it at HPT before I had the roll bar in the Miata.)
Since I have teenage daughters, we also have some "beater cars" around the house, because I don't want to give all my money to the insurance company. Mazda 626s and 1g DSMs. My daughters also autox the Miata.
I did the Richard Petty Driving Experience at KS Speedway, and my best lap was 39.9nn for a lap average speed of 140 mph. I used to race karts at the Liberty Speedway.
I don't have a ZX2.
In my dreams, one day I'll have a Spec Miata race car. (But probably after the daughters college tuition is paid.)
Who's next? (Does this need to be a sticky? Noobs could see it...)