what are the differences- Cougar sv

[mali]

Im hooked on this hobby and after the wife bought me an associated b4 for xmas last year and me taking the rest of the year getting all the electrics for it.

I love it.

But im getting urges to build something new, and the Cougar is it.

Now my wifes budget sadly doesnt extend to £250 for the pro kit but i have found the race kit for £180 which is within budget

what i need help with is ... the differences between the two kits and how much less would i be getting buying the race kit instead of the pro.

Is it still worth getting?

I gather it can be gradually upgraded to pro spec?

thanks

mali