Here's another what car thread for you guys. I have a 2001 330Ci with about 90Kmiles, stick shift with Kumho MX all around with more than 50% thread left and less than 1 year old suspension upgrade (H&R Race springs, Koni SA, Eibach f & r sway bars, and reinforced rear subframe with Turner kit). I've owned it for almost 4 years and it has a pretty complete service history. The only thing wrong with it right now is that the SES light is on which will probably require either new O2 sensors, new MAF or simply new intake boot (19 E3 E4 CB CA for those who have Peake reader code).
My dilemma is that this used to serve as 95% DD and 5% Autocrosser. Now that I have a new to me DD I don't have to drive this car daily anymore. My beloved wife lets me decide what to do with this car and my goal is to have a fun car for maybe around 8-10 autocross a year and start trying HPDE. I think my options are:
Keep the 330Ci and continue to build it as funds allow. I am thinking that it will need the following: the SES problem sorted, preventive cooling system maintenance done (new water pump, thermostat and hoses), new exhaust system (UUC TSE3 or AA exhaust), front camber plate to get more negative camber, LSD, and better brakes (better pads and brake lines). I figure this will cost another $3 - $4 K assuming that I do most of the work myself.
Sell the 330Ci (I figure I should be able to get around $8 - $8.5K) and do one of the following:
2.a. Buy a 1999 Miata and build a budget STR car with the proceed.
2.b. Buy a 1995 325is and build a budget STX car with the proceed.
2.c. Buy a 1989 - 1991 325is and build it the way I like it because I love E30.
2.d. Buy a 1995 M3 and build it as funds allow. I figure a 1995 M3 in good condition and decent mileage will probably cost almost the same as my 330Ci.
I am leaning towards BMW options either option 2b, 2c, or 2d because the local chapter of BMWCCA has DIY events which allow me to use the lifts at local shops and provide help on working on my Bimmer. Unfortunately my mechanical skill is novice to intermediate at most. I can change all the fluids and do the basic maintenance but not much more so the BMWCCA support system is really nice for me.
Which option will you choose and why? Please stay with the available options if possible. Thanks guys.

