i was under the understanding that it was so there was less holes in the chassis to make it stronger/ more rigid...... id guess the sidewalls may be slightly lower to compensate for the more contoured design of the bottom. it all looks to be the same height though just the steering rod isnt bent in the same way. also looks like the bellcranks sit a lil higer with the alloy x brace........ haven got one to hand though only my trusty p8
