Just in today is an Oldsmobile Toronado, unusual in two respects. First it has a tow bar. The normal #264 did not have a tow bar and so this must have been from a very early Gift Set with a speedboat. All the sets I have encountered had #276 in red with Golden Jacks so this is quite rare. Secondly, this model has a very distinct shade of paintwork. It isn't as clear in the photos as it is in certain natural light but this model is much greener, a paler shade of turquoise. I have included photos of it next to a traditional shade model.
I am also very lucky to find this in such unmarked condition so I am afraid that it won't be a cheap buy.