ORIGINAL: tommygun32
I don't have experience with either of the two cars you suggested (they are both very popular though), however, with regards to your engine question; you will need to put your own engine in it (and probably all the electronics, etc). As for the size, today's .21 engines probably have more power than you'll ever need in most race situations. In addition, .28 size engines are not sanctioned in most organized race meetings / competitions.
It depends on what you want to do with the car. Race or Bash? Bashing.... a .28 is fine, but then again, i personally wouldn't shell out that kind of money on the cars you've mentioned just to go bashing with. There's plenty of other very good (and less expensive) bashing buggies out there.
Don't forget a couple drops of after-run oil after each time out with the car.
Welcome back to the addiction.
Thanks for the welcome back
Definitely want to race with it. I see that the RTR comes with a .27 engine included - that is why I was asking about the .28 sizes. But most all the reviews that I find all show the .21 engines.
Someone had an OFNA setup with starter box that he was offering for $250 that I might get to bash around with and get the feel for the nitro power over the electric and bash around with.