How many left.co.uk might be a place that would interest you. they run quarterly reports on the subject. You would have a job calculating all e30's left though, as it's based on v5 records.

Drove it as I do everyday. Gave it large at a 3 lane traffic light standing start. Still a bit slippy out there! No harm done!(325i touring)

speedtouch is a genuine and reliable man, that sells products that do what they're meant to, at a reasonable price. Highly recommended.