If someone is willing to give you 10k$ for your 318i, don't you think it would be wise to sell? buy another e36 (preferribly a 328) and have handles just as well and will move when you hit the gas pedal.
I would be tempted to say my 95 525 with 120k miles would handle just as well as your 318i. most bmws will hang curves like a mofo, but if the guy you are racing leaves you on the straight... well that makes you second best.
1984 318i, m50tu powered- RIP
1986 325e, m50tu powered- RIP
1995 525ia, m50tu powered- Same ol same ol
2004 Explorer EB, RIP
1991 300e, m103 powered- Riden LOW