Dinky is one of the most famous diecast brands in the world, and with the acquisition of the brand by Matchbox in 1987 it is once again available under the "Matchbox" label.
The "Dinky Collection" was a new range added in 1988 after the acquisition was completed. Originally the range was a collection of vehicles from the 1950s and 1960s all in a 1:43 scale and the range complimented the "Models of Yesteryear" range which focused more on models from before this period.
Eventually the branding seems to have been dropped after the takeover of Matchbox by Tyco and some of the castings were then released as ‘Models of Yesteryear’ before that range was discontinued as well under the ownership of Mattel
The branding has on occasion appeared as nothing more than a printed logo on the base of certain miniature vehicles but this is only done so that Mattel can retain the rights to the name and branding.
From 1993 on this brand also was marketed under the "Matchbox Collectibles" name in their mail order only scheme until 2003.

This is not a definitive collection like the Yesteryear section, this is a selection from the Matchbox Collectibles based on the Dinky range which have passed through my collection. I've divided it into fairly arbitrary chunks shown below. The selections on the pages are not exhaustive, it is merely the random models which have turned up in the collections I have.

America's Finest: The State Police Interceptor Series

America's Finest: The Vintage Police Cars Collection

Cars Of The Rich & Infamous Collection

Classic European Economy Cars Collection

Matchbox Exclusives Edition

Miscellaneous (Internet Special)

The Oldies But Goodies Collection - Series 1

The Oldies But Goodies Collection - Series 2

The Classic British Sports Cars Collection

The Austin Powers Collection

The Matchbox Corvette Collection

Coca-Cola: The Cruisin' with Coke Collection

The Anheuser-Busch "Sports" Cars Collection

Military Series (Dinky)