Joe Tucker wrote: Superglue doesn't stand up well to "extreme" heat or cold, putting the cars in the freezer for the day will probably make the bonds so brittle they will break or shatter.
Actually, the CA bond is brittle by nature. What causes "sproing" (coined by Tim O'Connor in describing this effect as applied to photoetched running boards attached with CA) is expansion or contraction of the bonded materials.
