The 1968-1969 Hot Wheels Redline Lola GT70 from the Grand Prix series is indeed some of the rarest and most sought-after Hot Wheels cars among collectors.

In 1969, Mattel released a line up of 24 new cars including the new Grand Prix Series which featured famous race cars from the mid- to late-1960s.

A signature feature of early Hot Wheels cars (from 1968 through 1977) were their mag wheels and red-striped tires.  

These so-called "redline" cars were wildly popular when first introduced in the 1960s, and remain a hot collectible item today. 

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