McLaren Senna (2018) is 1255 kg (2,767 lbs) lighter than Rolls-Royce Phantom (2016).
Rolls-Royce Phantom (2016) is 1098 mm (43.23 inch) longer, 32 mm (1.26 inch) wider, 443 mm (17.44 inch) higher and has 459 liters (16.21 ft3) bigger cargo space than McLaren Senna (2018).