[Overdriven]

If you're just going to be doing grass bashing, street runs and occasional racing, buggy is probably your best choice. Truggies are great, but they don't go as fast, as easily and as cheaply as a buggy. And a truggy won't have a bigger battery tray. I'd do some searching of the manufacturers websites and their forums for the exact battery tray sizes.

1717 has a larger diameter and will probably hit the chassis in any buggy or truggy unless you add a spacer under the center diff to raise it up. 1520 might limit your gearing options a little in a buggy due to it's lower Kv, unless you run 6s. Run some numbers in brains speed calc to help figure it all out. Anything less than 45mph would be undergeared with a 1520 in something that light though. I should know, I tried my 1520 in my buggy with my current 1518 gearing. 1520 ran hotter than the 1518 and was also hotter than when it was in my heavier Emaxx, indicating it was undergeared. The 1518 should be fine though, like I said mine is geared for 50mph in a buggy and the temps are fine running in grass with very little airflow under the body.