In 1981, Hot Ones wheels were introduced, which had gold-painted hubs, and claimed to have thinner axles for greater speed, along with additional suspension compliance that older production Hot Wheels lacked. Ultra Hot Wheels were introduced in 1984, and looked something like the cast alloy wheels found on a 1980s-era high-trim Renault Fuego or a Mazda 626, with three parallel dark lines cutting diagonally across the flat chrome face of the wheel, all three broken in the center to form six individual shorter lines. These new ""Ultra Hots"" claimed further speed improvements. Hot Wheels started offering models based on 1980s-era sports and economy cars, like the Pontiac Fiero or Dodge Omni 024, in addition to their typical 'hot rod' and muscle car style offerings. In 1983, a new style of wheel called Real Riders was introduced, which featured real rubber tires. Despite the fact that they were very popular, the Real Riders line was short-lived, because of high production costs. In the late 1980s, the so-called Blue" "Card blister pack color scheme was introduced, which would become the basis of Hot Wheels colors still used today (original blister packs were red and yellow).