I haven't been driving my DASC'd '98 ti much lately...so I've been thinking about selling it to get a blown e36 M3. Rationale: long term collectibility of the M...even in modified form.
So...I went to look at and drive a '95 M3--Avus blue, black leather Vaders, sunroof, vortech supercharged, 3.2 OBD1, H&R coilover race suspension, front strut bar, anti-roll bars front & rear, urethane bushings F&R, aluminum radiator, fan delete, UUC clutch & flywheel, B&B exhaust, 18" BBS, 235/40R18 rubber, Brembo cross drilled rotors, stock calipers....etc...
My ti (owned since new)--Avus blue, black leather/grey cloth, Cali roof, M44 w/ DASC and AFPR (stock ECU and injectors), UUC flywheel, e34 M5 clutch, Remus exhaust, AC Schnitzer springs, Koni struts/shocks, front strut bar, 17" AC Schnitzer knockoff wheels, 235/40ZR17 rubber, 328i front vented rotors and calipers...etc...
Both cars had some minor chips/dings in the paint and both had approx 110k miles. No rips or tears in the leather, so they were equal in the cosmetic dept. I would have had to invest approx $5000 to "step up" to the M3.
Analysis: the M3 was faster than stink...much faster in a straight line than the DASD'd ti. My test drive was on public streets, but I suspect it would also handle circles around the ti on the track. On the street, however, the ti is much more civilized. While I used to think my ti rode somewhat harshly, it is a Cadillac compared to the highly modified M3. The ti has more roll in the corners (barely) and has more wheel hop due to the e30 rear trailing arms, too. The modified ECU in the M made fuel delivery much smoother and was more easily modulated. However, I could really feel the extra weight and length of the e36 M3 in the corners. While it was clearly faster overall, the ti FELT more nimble.
Result: The modified M3, although faster, is not worth the extra coin. Even if I had been offered an even trade, I don't think I would have taken it. My ti still puts a smile on my face every time I drive it, and the performance difference between it and a similar generation blown M3 is, IMHO, negligible. The uniqueness of the ti body style in the USA, and the Cali roof still grab more attention than a "run of the mill" e36 M3, too, which is a nice little intangible.
Bottom Line: Long live the Ti!!!