Just speculating. I've got this lovely Thinkpad 380Z (233 PII) that's achingly slow but has a big-boned chassis. I'm wondering if it's possible to gut the thing and drop in a newer engine. Sort of like dropping a big V8 into a 4-banger pickup. Maybe you have to jettison a few bulky things like the wiper motor (floppy) and put the battery in the trunk (AC adapter only), but the thing goes screamingly fast and only smokes a little bit.