@CrucialRC
While you are right and Nitros aren't slow and @BopP exaggerated with Electric will outrun nitro any day, with comparable cars a good setup electric will most likely be faster than a nitro setup (Interestingly enough, on real cars I still prefer gasoline compared to electric while in the RC world, I drive only Brushless...).
As entertaining as the clip is to watch, you're still comparing a 1:8 scale race truggy to a 1:7 scale MT (which is about 2.5 to 3 times as heavy and has a higher center of gravity, which even in a straight line is bad; wheelies, although I love them, slow you down).
I know that you know that, but the thread starter could see that in the wrong light and get from that that nitros are still faster, which is not really the case.
@highxj
If I were you, I would definitely still keep a Savage XL with nitro and maybe get myself a brushless vehicle.
The XMAXX 8S is a blast to drive, but I personally (drove one of a buddy of mine) found it to be to sluggish for my taste as there is a lot of weight that you have to move around, which is why I prefer my Arrma Kraton 6S. So you might look into an 1:8 scale brushless 6S monster truck, as in that size the accleration of electrics really starts to shine (in my opinion).
What might be the best option for you though would maybe be to convert one of your Savage XLs to Brushless. I mean, there was a Savage Flux, so the needed parts should be possible to find, and that way you would still more or less need the same spares for all your trucks but would be able to run brushless as well as nitro.