McLaren 620R
Why 3.8: McLaren built the 620R as close to a genuine GT4 race car as anything wearing license plates gets — fixed racing suspension, a roll cage option, barely any infotainment — and then sold it almost entirely to collectors who already own several other McLarens. The rarity that makes it desirable is the same rarity that keeps it parked.
Layout
Natural habitat
Ride comfort
Sound
The titanium GT4-derived exhaust is the loudest McLaren has fitted, and the roof snorkel funnels turbo and induction noise straight into a car with no carpet. But the M838T has never had much tone, and the turbos still sit between you and the pipes. Rawness, not melody.
8-cylinder · turbocharged · 8,200 rpm redline · rated 7.5 / 10 for engine sound
Market value
Median asking price, good condition · €275k (2020) → €294k (2026), trending up · illustrative data
Child seats · ISOFIX
There aren't any — strict two-seater.
Fixed MSO 'Sabre' bucket seats with standard 6-point harnesses — a road-legalised GT4 racer, not a car with any child-seat provision.
Motorsport-style fixed seats and harness make the airbag question academic in practice.
McLaren 620R MSO spec listing (owner-community sourced, not manufacturer documentation)
The long version
This is the 570S GT4 race car with plates and a passenger seat, built in numbers small enough (around 350) that McLaren could offer it directly to existing owners rather than advertise it. That distribution model self-selected for buyers adding to a collection rather than replacing a daily car, and the fixed, non-adjustable racing suspension does the rest of the filtering — it is genuinely unpleasant on anything but smooth pavement or a track. The result is a car with real motorsport pedigree that spends most of its life not being driven, exactly the outcome you'd predict from selling a stripped-out track special to people who already have somewhere else to put their daily miles. When one does come out, it's almost always for a track day rather than a commute.