These cars are a lot more capable of physical performance than human hand-eye coordination is, haha. Tuning these cars for performance usually comes to the limit of what the driver is able to control and maintain a level of consistency, especially in off-road.
On a track that negates the advantages of an electric motor or a gas truck's usually soft suspension (to navigate bumps) modified electric truck and gas truck should be relatively close on lap times (when driven to their limits, of course).