Used lot of 15 Hot Wheel type cars all manufactured in Thailand.  Listed below is what is denoted on their bottoms. 

Porshe Carrera GT Black

Porshe Carrera GT Black

Dodge Sidewinder Green

Dodge Sidewinder (2) Blue

Ferrari FXX

Acura HSC Concept

Nitro Scorcher

Bone Shaker

Spectyte

Stockar

Synkro

High Voltage

Phastasm

Rocket Box Mattel