BMW M3 (E30)
Why 3.8: The touring-car homologation blueprint, and still raced in classic series. But six-figure values moved most road cars into climate-controlled storage — the S14 revs mostly in memory.
Layout
Natural habitat
Ride comfort
Sound
Individual throttle bodies and a motorsport head give the S14 a gruff, hard four-cylinder rasp that only gets angrier to 7,250, with very little insulation to soften it. Four cylinders limit the depth, which is what holds it just under the S2000.
4-cylinder · naturally aspirated · 7,250 rpm redline · rated 8.2 / 10 for engine sound
Market value
Median asking price, good condition · €26k (2000) → €97k (2026), trending up · illustrative data
Child seats · ISOFIX
Built before ISOFIX existed, so there are no anchor points at all. A child seat here is a seatbelt installation, and the belt geometry of the period was not designed with one in mind.
Derived from production years and seating layout, not a per-car source. ISOFIX was standardised as ISO 13216 in 1997, required on new EU model types from 2011 and on all new EU cars from 2014.
The long version
There is an active vintage-racing subculture that still campaigns these in period-correct trim, and that community is arguably the only thing keeping the model's reputation as a driver's car alive at all, because the road-car population has mostly gone quiet. Values have more than tripled since 2010, and a car that expensive does not get left outside a bar anymore; insurance policies and trailer queues have replaced casual ownership. Flip Bait and Homologation Hero both point the same direction: bought now for what it represents in touring-car history, priced accordingly, and driven only by the minority still willing to risk the paint.