That is a flat bottomed lipo - and it is further "in" than it is intended to be in I think. The GM lipo connectors are closer to the centre of the pack that all the others i've seen.
You can see from your pic however, that the motor clamp is "skullpted" to effectively allow the actual motor to touch the lipo if necessary - that's kind of the idea i believe.
Personally, i've never been in any way interested in using the top deck with the hole in it, as i think it looks shocking!! but that's just a personal opinion! Remember - a good looking car will be a fast car!!
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Matthew White
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