XRAY - Model racing cars

I am ordering the Xray T4 - 2014 and our local club of guys is also following my idea, and we were wondering what tires Foam or Rubber and what firmness or grade tires should we purchase? We will be running on a newly paved HUGE PARKING LOT and 3 football fields large. Any help is GREATLY appreciated?

-Drex

Hi, the past 2 years we have used in the french national championship the ride 36 tyres which are really greats.
overall good grip and really long life, 20 to 30 run without big grip difference. They maybe also exist in 34 shore, which can be better when it's cold outside !