Listen believe me when I say the TQ isn't downgrading from a MP7.5 RTR. The 7.5 RTR is a POS. I broke a wheel, wing and bent a chassis within 1/2 hour of use and i didn't even crash it badly, just a couple of big jumps! to get it to the standard of a TQ it would have taken a further £60-100 not including the broken stuff or the intial cost of the buggy. If you want to know what I upgraded on the TQ let me know but in my opinion just get chassis braces, a NiMh receiver pack and a steering servo and you will have a good buggy. The 4 port engine .21 is not bad for a RTR and by the time you need more you will probably be looking for a new engine anyway. If you want a little more from it you can always pick up a nice tuned pipe off ebay and it will fit straight on your next engine so is not wasted cash. For the money it can't be beaten.