I'm not sure it's going to be as bad as it would be for a new ICE paltform. They've already had plenty of years with the Bolt batteries as well as lessons learned about battery fires, etc. Hopefully those lessons learned will apply to the Ultium platform. As far as mechanical, hopefully the larger more heavy vehicles will get heavy duty engineering. I suspect that I'll have less issues with the Ultium platform than I did with my Saturn that came with the first supercharged 4-banger and performance suspension. I'm looking forward to having a larger vehicle that isn't going to be subject to expensive gas prices.Sure you dont want to wait 2yrs to let them work the bugs out of that new platform?