Chrome 42+ disables NPAPI plugins like Unity3d plugin.
Copy and paste the following text into your browser: chrome://flags/#enable-npapi and enable the NPAPI plugin.
Or try another browser like Firefox
Racing on a circuit in CarX Drift Racing includes a Nissan GT-R, Toyota AE86, Honda NSX, or even a bus. Tweak the settings of your car and race / drift as much as you can. Race with the arrow keys and use N to switch cars.