Modern electric powerplants with LiPo batteries are more powerful than the nitro stuff that is in the same price range. It's hard to compare one to the other, because a $1200 nitro motor might be quicker than a $200 brushless setup, etc... But in general, the brushless and LiPo is faster, lighter, more consistant, MUCH more torque, easy to operate and maintain, etc... Since the electric stuff is faster and more powerful it's not carrying over to racing, and it's consistent, which as a drag racer is one of the most important things to my racecar.
I know how a lot of you guys think, that electric cars are for wimps and stuff like that. I know, because I used to say the same thing. I swore that I would never get rid of my nitro, and I just couldn't imagine something so silent and electric being powerful like nitro. However, I have become educated in RC's since I had that ignorant mindset, and I now know that I was absolutely WRONG. I used to say that I would only have nitro. Once I realized the power that's in both 2 stroke gas motors and brushless electric motors, I realized that I was badly misinformed, and I was missing out big time. Now, I've gotten rid of all my nitros and I only run gas and brushless with LiPo. And it isn't because I don't like to work on them. I restore full size hot rods and drag race a 10 second camaro, so I absolutely LOVE to work on stuff. I just know how powerful brushless and LiPo is, and how much fun it is to run.
I get 2 hours on one battery that is 2 inches wide, 3 inches long, and about 5mm thick in my crawler.
I know what someone is about to say because they always say it when I post something like this. They say "of course it gets long run time, it's a crawler." Another case of ignorance, because even though we're going slow, our big powerful motors with high voltage are often pulling nearly as much current as a basher.
BUT, I know you can't compare crawler runtimes with racing runtimes. Well I have an Associated RC10 T4 race spec truck that I built to race. I have a castle creation sidewinder in it with a maxamps.com 2S 6000HV battery pack in it, and I got 40 minutes the last time I took it out, and when I brought it inside there was still a good bit of battery left in it, but it was about to start raining.