The ONLY drawback i could see, is that you wont be able to run much of-road with a road car
If i where you i would make the trade asap !! i do not think you could ever regret it, ever. I know you will not ever remember, or want to remember the nitro truck. Just dump it to the sorry bloke, and get that 1/5 car, not much to think about there i promise that you wont regret it in any way. It's so much more fun with a big car 1/6 - 1/5 you wont brake any parts easy, very low maintenance, and great power. Not any mess and parts breaking all the time like [&:]nitro[&:] does.
Just ask your self this question.... it's the only little question you should have. Can i stay away from the bush and high jumps etc ? if you are not a fanatic of-roader, then you can with ease chose that road car. There is lots of big car parks you can drive at, and other similar places, but be careful... these big 1/5 toys are dangerous.
Good luck to you whitek !