VP728-P15

VP728-P15 is a "pure white" prototype vehicle that has been used by McLaren to promote the Senna. It has three exhaust exits and is left hand drive. The prototype has blue brake calipers and aero blades. The interior features Bowers & Wilkins speakers. It had a temporary Spanish license plate reading "S 3536 BCB".

Timeline
In April 2018, McLaren released a video of the car racing during hot-weather testing at Circuito Monteblanco in Spain together with VP724-P15. The car was also present during the "Global Test Drive", the launch of the Senna at Autódromo do Estoril in Portugal in June 2018. It was accompanied by press Senna 2, 3, and 4. At the ensuing Global Retailer Conference that same month, those cars were joined by VP736-P15. On June 24, Formula 1 driver Ayrton Senna's nephew, Bruno Senna, drove around Estoril with six winners of a McLaren competition on the passenger seat.