modelling deformed tyres

[Nicola]

is there any way to create/insert a deformed tyre in mlcad (or other programs) ?
something like this:

[Michael Heidemann]

My first thought was to use the matrix, but a quick check shows me that this does not work properly. Maybe for a quick shot this technic can be used, but not for high quality renders.
What you really need is a new file. So you have to create, based on the values you need, a new part file.
There is no other way to solve your problem.

[Philippe Hurbain]

Not so simple... for this slick tire, Pathtruder would do the job to create a specially warped part. LSynth could be used too, and I think it would be possible with LDCad too.