My guess is that Rush is driving a Bentley Continental Flying Spur sedan in addition to possibly a Maybach 57 sedan. What makes the Flying Spur so desirable is the fact Bentley never agreed to the
gentleman's agreement by German automakers to limit the top speed of high-speed sedans to 250 km/h (155 mph), so the top speed of the Flying Spur is something like 197 mph!
This does explain why many buyers of high-end sedans in Germany often get that speed limiter disabled by changing the engine computers, and that's why we've seen AMG-badged Mercedes-Benzes and Alpina-badged BMW's go 300 km/h (186 mph) or more.