"Rear track" refers to the distance between the two rear wheels of a vehicle. It helps determine the stability and maneuverability of the vehicle. Full definition
Key among the changes is a wider rear track for added grip and stability, and a carbon - fibre - reinforced plastic roof to save weight and lower the centre of gravity. (motoring.com.au)
The 1.8 L engine model's rear track width has increased by 30 mm, and the same of the other two engine models has increased by 20 mm. (indianautosblog.com)
The demonstration models feature an advanced chassis configuration with a narrow front track and wider rear track for optimum aerodynamic efficiency and handling stability. (greencarcongress.com)