JL meaning in General ?

Johnny Lightning is a brand of model cars originally produced by Topper Toys, similar to the hugely successful Mattel Hot Wheels die cast cars. Their claim to fame at that time was that they were extremely fast compared to other brands of die-cast cars. Their most important technology was to mold in a small hook under the front axle so that they could be propelled by a lever-driven catapult, far faster than could be obtained by either gravity, or battery powered "supercharger" devices.

Al Unser Senior won the Indianapolis 500 in 1970 and 1971 in the Johnny Lightning special.

Topper closed in 1971 and production of Johnny Lightning cars ceased for 23 years. Topper made a total of 47 different models.

In 1994 Thomas Lowe of Cassopolis, Michigan became aware of the abandoned trademark and secured the rights to the Johnny Lightning name for his Playing Mantis toy company. He made replicas of his favorite 10 original Johnny Lightning cars. His first customers were Walmart and Toys R Us.

Playing Mantis produced the toy cars under the Johnny Lightning brand name from 1994 to June 2004. Over 600 different models were produced over that time period.

In 2004 Mr. Lowe sold Playing Mantis (including the Johnny Lightning brand) to RC2 Corp. which in turn was bought by the Japanese toy company TOMY in 2011. TOMY discontinued the Johnny Lightning line of diecast cars in 2013. The brand continued to maintain a following by a loyal group of collectors. In early 2016 Round 2 LLC, a toy company owned by Thomas Lowe (who also owned Playing Mantis), revived and reintroduced Johnny Lightning vehicles to the toy market for a second time.