GM's answer is the Structure wheel being debuted on its Opel/Vauxhall Vectra line. It's a special five-spoked steel wheel that's covered with an inexpensive though extremely alloy-looking plastic ...

In the video above, you can see GM President Mark Reuss behind the wheel taking the ZR1 to an average of 233 mph. The top-speed runs were made in both directions to account for wind plus elevation ...