[autoavia]

Below is a copy of a post by Maurizio Ferrari of Slotit on another forum.
Unfortunately when models are manufactured so far away problems will arise occasionally and all credit to Slotit for admitting that there has been a problem and for taking steps to make sure that the problem is resolved. Maurizio clearly values our custom so we should do our best to support him in the future.

Quote

Anyway, about the 312 B2, we were able to trace the issues to this fact:
During manufacturing, after we checked the production items, the company had to rework all the models, to replace the motor mount which was injected with a wrong configuration, unsuitable for this car. Rather than injecting the rear exhausts parts again, they removed the old exhausts parts, kept them aside, and recycled them on the freshly injected motor mounts. Evidently this added layers of glue to layers of glue and the rear exhaust part now protrudes from the bottom of the chassis. In some cars it is very noticeable, in some other less. This reduces clearance between chassis and track, and especially on the bumpy Ninco track, with its raised rail, can lead to a car that may be malfunctioning.
 
In the light of all of this, we have decided to do as follows:
 
we are preparing a kit consisting of
a ) a 51mm axle
b ) a new, rear exhaust assembly to replace the existing one on the cars.
This kit will be made available free of charge to anyone requesting it, through the distributor - retail shop chain or may be obtained directly from us in some cases.