Rolls-Royce Phantom Coupe (2014) is 1914 mm (75.35 inch) longer, 267 mm (10.51 inch) wider, 82 mm (3.23 inch) higher and has 141 liters (4.98 ft3) bigger cargo space than Vauxhall Adam (2017).
Vauxhall Adam (2017) is 1638 kg (3,611 lbs) lighter than Rolls-Royce Phantom Coupe (2014).