Which car is it — Elva vs Speedtail vs Senna vs Sabre
The Elva sits inside a very small MSO / Ultimate Series grouping. It shares the M840TR family V8 architecture with the Senna, Senna GTR and the 15-unit US-only Sabre, but is McLaren's only open-cockpit road car and the fifth entry in the Ultimate Series lineage after F1, P1, Senna and Speedtail (McLaren press release, 13 November 2019, ). A prospective buyer needs to confirm the specific car is one of the 149 factory Elvas via VIN cross-check with McLaren Special Operations at Woking and with the delivering McLaren Retailer. Verify whether the car is the launch reference no-windscreen speedster or the factory-optioned fixed-windscreen derivative (single-source dealer statement, Bring a Trailer lot 2021-mclaren-elva-8, : 'one of 19 examples produced with a full windscreen' — the 19-unit figure against a McLaren MSO production ledger, as it is not McLaren-source-published). The chassis-plate number-of-149 marker in the door jamb (Bring a Trailer lot 2021-mclaren-elva-8 'A plaque affixed to the door jamb lists the car as number 110 of 149') is a standard reference-point on every Elva.

