The tax, affecting cars that cost more than 1.3m yuan ($189,000; £151,024), is aimed at curbing lavish spending and reducing emissions, authorities said.
It is part of a wider effort by Chinese authorities against flashy demonstrations of wealth, which has already hit other luxury brands. China is a key market for high-end carmakers.
Automakers have in recent years increasingly tailored their luxury models to appeal to Chinese buyers.
Both Rolls-Royce and Aston Martin are planning to release SUV models in the next year, seen as a response to a Chinese preference for large cars over sports vehicles.