Carrera Torino

[WB2]

Has anyone here noticed twisted bodies on the Carrera Torino?
One can detect this by placing the body rocker panels down on a flat surface; by turning the body upside down and siting from bumper bottom to bumper bottom; or, with the body resting on the roof, laying a round tube across the front and rear wheel wells. It’s also detectable siting between the front edge and back edge of the interior.
I can’t figure out what introduces this twist. I wonder if the body comes out of the mold like this, or if, during assembly, something gets it out of whack.
I have six of them and only two actually sit flat. The others have the left front tire up in the air. The chassis sit flat. When screwed to the body (screws tightened, then backed off), the twist is transferred to the chassis.
Any ideas?

[WB2]

Here are pictures to explain.
I laid pencils on the wheelwells. Pencils should be parallel but they are not.
Third and fourth pictures show car sitting flat on right rocker panels. Both cars show space just behind the LF wheel opening. This translates to the amount the LF tire comes off the surface. The plastic chassis isn’t rigid enough to tweak the body. Instead, the chassis follows the body tweak.

[slothead]

I haven't checked my Torinos (or other cars) for this. I have flattened a few chassis using the pin them down with magnets and put in a warm oven method.

I wonder if hot gluing these bodies to a flat surface and putting in a cooling oven would work?

[Wobble]

One of my Torinos (blue #76 Ben Arnold) was a bit like this but as I run the bodies loose I just filed down the opposing body posts and chassis mounts a tad so it'd sit flat without rocking from corner to corner. It's still noticeably down on the front right and back left but runs OK and doesn't do anything it shouldn't do like kicking the back out under braking. I didn't fancy trying to straighten it 'cos I tried that once with a Monogram Fred Lorenzen Galaxie and twisted it so bad it had to be retired to the bin.

[HomeRacingWorld]

One of the issues is that the holes for the screws are slightly out of alignment. Although the body posts go into those chassis "cups", sometimes the holes are not drilled properly. When the screws are installed, it causes quite a bit of pressure. Over time, it leads to this "tweak" or twist on both the body and chassis.

It is why one of the first things I do is cut the lips of those down flush and slightly enlarge the chassis screw holes to relieve the pressure. If it is still tweaked, I do try to heat the body and chassis to get them at least as close to straight as I can.

It varies from car to car, but I would say about half of my Fords were like this. The original cars before the chassis change were worse actually.

[WB2]

Have removed cups and reamed screw holes in chassis.
Old Petty car still won’t sit flat.
I’m wondering if the thumbscrew that holds the car to the box may be the culprit. The screw goes into the right hand side of the chassis, and usually requires a bit of strength to loosen.
New vs. old chassis: I much prefer new.

[Brad_T]

Does the body still have the twist if you remove the interior tray?

[HomeRacingWorld]

The couple I had did. I removed it before heating.