The XK series of the Jaguar sports cars developed from the XK120 to the XK150 with 3.8 engine, which went out of production in 1961. At that point Jaguar presented a completely different car with innovative lines, the E-Type, truly destined to mark an era. The first series was equipped with a 3.8 and then 4.2 engine and is considered by many to be the best one, produced from 1961 to 1968. The 4.2 engine was also preserved for the second series (1968-1971). The car was produced in both coupe and spyder configurations. The third series, produced from 1971 to 1975, was initially available with the 4.2-liter 6-cylinder engine, but in the following years the 5343cc 12-cylinder replaced the old engine. The E-Type also experienced many sporting variants, such as the Lightweight, which achieved success all over the world. Even today, the E-Type is perhaps the most famous of the Jaguars.
The Italian Best was founded in 1990 as one of the successors of Box Model. The Box Model molds were split between Best and another Italian company, Bang. Best, directed by Marco Grassini with the company called M4 (named after the founder and his family: Marco, Mariella, Michele and Manuela), thus began producing high quality die-cast models in 1:43 scale. The quality has increased over time, especially thanks to the use of photo-etched parts. The company produces sports and racing car models from the 60s and 70s, mainly Ferrari, but also Alfa Romeo, Lancia, Porsche, Jaguar and Lola. The owners of Best also produced the Art Model (Ferrari, since 1993) and M4 (Alfa Romeo models, since 2007) brand ranges, and in 2004 they took over Rio material. After the death of Marco Grassini in 2016, the business is carried on by his family.