HANS Devices, Model 20 for Sedans
The Model 20 is designed for most upright applications, including the majority of sedans and sports cars.
To find the correct angle for your application, sit in your car and measure the angle of your chest from vertical. If the angle is 25 degrees or less, the Model 20 is probably best for you. If the angle is more than 25 degrees, you may want to try the Model 30.