just concider that you will be driving your car as hard as you can for 5 minutes...for the whole day. Drifting is worse...way worse...your pushing the car to do things it's not suppose to do...for extended periods of time...and a full day at a drift event, you'll have about 30-50 minutes of hard driving. For Autocross, your daily driver will be the best car to use, becuase your already used to it, the way it feels, and besides...your first few laps you'll have an instructor with you, and you will be taking it pretty easy. after they feel that your good to go on your own, then you can step on the gas a little more.
And tell me about breaking things....I am the king of breaking things. And I always get the car home...Thanks AAA.
Things that I do remember......
I snapped a a clutch pedel in half, had to drill it and fix it up with Zipties and safety wire....
I blew up a motor in the Z, then I turned around and blew up the civic 2 hours later...
I snapped a front lower tie-rod on the Z, a couple of clamps and a few washers...I limped the car home.
I broke a few tabs off of an photo electric dizzy pick-up...and got the car running to make a run later.
I showed up and they teched my car, found some slop in a steering ball joint...Thanks to E, he ran me to a parts store and I got a new one.
I limped a Z down to MD for a drift event, and over heated all day, lost all power, had a fuse box flying around in the car, and had a Maf tube leaking......fixed all the above and only had one good run.
Broke a water pump off, had to superglue it back on and limp it home from NJ....
Duct taping and clamping turbo pipes...
Ran out of gas, ran out of oil, had fuel leaks, and a lot of other stupid crap...
and prolly more that I think I wanted to forget....but point being...motorsports will break weak cars...if your car is decent, and runs good...then 5 minutes of abuse isn't going to kill it.
You got a trailer and a truck, so tow the car your going to beat on there. Or just don't beat on the DD to hard...and just go for the first few times to get tips and training. Take what you learn and build up from there.