There are 300+ cars in my Cigarbox / Speedline collection. All are different variations, colors. I like to collect odd variations that Aurora sold especially during the end of the production run when they were dumping bodies with the worst quality but more unique and collectible cars.
Here's a brief rundown on what I have learned collecting Cigarbox & Speedline cars:

1st Variation (Cigarbox):
Aurora TJet bodies, chrome wheels & rubber tires. High quality cars with original TJet Paint schemes & chrome. Each car was sold in a small yellow "Cigarbox". Great looking cars and released to compete with Lesney Matchbox cars. All Cigarbox cars have shorter front screw posts to accommodate the die-cast metal Cigarbox chassis. Most cars are the standard colors identical to the TJets.

The Cigarbox chrome colors are light purple, dark purple, silver, copper, peach, yellow, red and gold. Aurora made a beautiful Chrome Dune Buggy.

2nd Variation (Speedline):
Aurora Speedline Cars had hard black plastic wheels and used the same TJet bodies, but the quality was starting to degrade. Some cars are missing windshield glass, chrome parts and driver's heads are commonly missing. Some unique chrome colors and different colored plastic were used. Here you can find Lime Green, Black, Orange, Salmon, Gray and Purple bodies.

3rd Variation (Super Speedsters):
Aurora Super Speedster Cars were very low quality. Cars are missing windshields, chrome pieces, drivers, etc. This was Aurora's way to dump car body inventory. For collectors today, some of the most interesting & collectible color variations came in the last run of 3-packs. I have found plated red, copper, different shades of yellow, blues, green and red, orange, mustard, black, flesh or salmon, pumpkin & gray.

Cigarbox - Speedline Collection

Click on a pic below for a slide show