Wheelbase, Track and Turning Radius

Overview 

As of October 23rd, 2016, MSXII's wheelbase and track have been set as 2600mm and 1718mm respectively. These dimensions were driven by the overall shape of the vehicle and by the need to provide enough surface area for 5m² of solar cells on the roof. 

Other Cruiser Class Cars

By scaling pictures of other solar cars, we can reverse engineer some of their key dimensions: 

Other 2 Door Coupes 

Regulations

WSC 2017

• 2.20.1 - Solar cars must be able to negotiate a Figure-8 course in less than 9 seconds per side and less than 18 seconds overall. 
• 2.20.2 - Solar cars must be able to negotiate a slalom course in less than 11.5 seconds.
  

ASC 2018

• Front, rear track > 0.5 x total width 
• No specifics on turning radius at the time of writing but historically they have been the same as WSC as shown above

Turing Radius

Using a wheelbase and track have been set as 2600mm and 1600mm respectively, the maximum steering angle required to achieve a 10m turning radius was found to be 17.4˚.The rectangle in the sketch below shows the width and length of the vehicle. The Large circle shows the outside diameter of the above figure-8 shown in the WSC regulations.

Note: this sketch does not take wheel offset into account. It should be updated once the suspension geometry has been defined.