HOT AND STEAMY BODIES

One thing I do for fixing warped bodies and for bending plastic in general is to use steam. I just fill an old kettle, wait for the water to boil and that's it. You can regulate the temperature by how close you hold the body to the steam spout, but you have to be careful not to burn yourself, so I use an oven glove or a pair of tongs, or else I'm just very careful. I keep a slow trickle of water going in the sink to plunge the body into now and again to cool the plastic down. I bend it a bit at a time, steaming then cooling, until it's done. If you go too far you can just bend it back again. It's quicker and more effective than straightforward hot water.
Here is an old Minialuxe 1/32 Jaguar body shell that is thoroughly warped. I managed to make it a lot better using the steam method but unfortunately it still looks like a banana in plan view. I'm hoping to make a resin cast of it and try to fix the longitudinal warp by manipulating the cast, and/or the resin while the resin is still setting.
These old Minialuxe Jaguars were distributed by MRRC in the early sixties and can be seen featured in some of their product lists from that time.
(Thanks to Charles Lawrence in Seattle for loaning me the shell to work on).



It works well on old Scalextric cars such as this one, another D-Type, which had a bit of a warp that was cured in minutes:



Cheers.