How much to build to a rallycross/grassing car ?

[JLW_MKI]

I have family (who I only see once or twice a year) who do rallycross/grassing and I want to get into it myself (I have some limited experience). How much can I 'build' one for realistically (including sequential box) ?

[fttm]

Ten grand for the box straightaway .

[anonymous-user]

Ask the family member who does it. Could be 1-100k.

[gazza285]

fttm said:

Ten grand for the box straightaway .

Bike engine.