This is a set of 4 Matchbox cars.  They are

• yellow Dodge Viper GTS - 1:59 scale - 1996
• silver Ferrari F50 - 1:59 scale - 1995
• red Ford Mustang - 1:61 scale - 1999
• '62 blue VW Beetle - 1:58 scale - 1998

Pictures are part of the description.