XRAY - Model racing cars

Can you guys help me pick a starting setup? I own an XB8tq powered by an RB WS7x2 engine.
The track surface I race is medium and at some places it has medium grip and at some other parts, especially at turns,entering and exiting, the surface is very loose and slippery and the traction is very low. The straight lines are occasionaly sprinkled with water before the race.
These are some pics of the track

Just build the car as it is in de Building guide, then try it on your track, and start from there.
( In the back of the Building guide you can see wich changes have what effect on the handeling of the car )

That's what i did. It ran great out of the Box, no compleigns what so ever.
Much better than my earlier cars.