These newer cars are light and offer so much steering, the rear can become touchy on all of them.
While I don't own one, the Mugen seems like it may fit your style. It can be driven harder than most and they offer the overdrive gears that will put the power to the front and take it off the rear for those with a heavy finger.
I also had to learn and I can honestly say that most buggy drivers are using engines that are above there ability of driving.
A mild engine is all that's needed.