I have a few cars and I also have a heavily modified Savage, I have gone through it all with the savage, currently I have a LRP Z28R (3.74 hp) with alot of mods to make the handling better and such.

If I were to get a new MT, I would not think twice.

My choice would be Tamyia TNX.
You get alot for what you pay.
Its great at the track, and good fun playing with.

The TNX comes basically race ready out of the box, the only thing you might consider is to get stiffer springs and heavier oil in the shocks.

Good luck choosing the car that suits you and have fun.