The XJ Series 1 was introduced in 1968 as a replacement for the Mark 2 and Mark X saloons. It featured a revolutionary design by Sir William Lyons and Malcolm Sayer, with a distinctive long, low body and a fastback roofline. The XJ Series 1 was initially offered with a range of inline-six engines, including 2.8-liter and 4.2-liter options. The 4.2-liter engine, in particular, was well-regarded for its performance.

The Series 2 featured some design updates, including a larger front grille, new bumpers, and a revised interior. The distinctive glass-covered headlights of the Series 1 were replaced with exposed dual headlights. A significant addition to the XJ Series 2 was the availability of a 5.3-liter V12 engine, providing even more power and smoothness.

The Series 3 featured additional design changes, including a higher roofline, a larger grille, and wider flared wheel arches. The goal was to enhance interior space and comfort. The 5.3-liter V12 engine continued to be offered, and a 3.4-liter inline-six engine was reintroduced for some markets.

The XJ Series 1-3 played a crucial role in establishing Jaguar as a producer of luxury saloons with a perfect blend of performance and comfort. The timeless design and innovative features of these models have contributed to their status as classic cars, and many enthusiasts still appreciate and collect them today. The XJ Series has continued its legacy with subsequent generations, maintaining its position as one of Jaguar’s most iconic model lines.