Unless you can verify someone who has, I wouldn't try it. The EType doesn't really have a frame - its a uni-body and I'd be afraid of bending the body. But I'm just basing that on looking at the MaxJax system and knowing how minimal the Etype body and front sub-frame are. There is another system that basically lets you drive the car up on ramps then the whole thing can be jacked. I'll see if Tony Barnhill (I think he has this system) can post a picture.
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Never underestimate the stupidity of your fellow man.