The Jaguar XK , part 2

Both the XK8 and XKR are electronically limited to a maximum of 155 mph, lower than the top speed of its predecessor. The XK8 heralded a change in direction for the company, resulting in the S-Type and X-Type.

The XK8 and XKR come standard with 18-inch alloy wheels, and 19 and 20-inch wheels are available for additional cost. A navigation system and self-leveling xenon headlamps come standard with the XKR and as options for the XK8. Jaguar's Adaptive Cruise Control is an optional feature available on both models. Both come with all-leather interior, burl walnut trim, and side airbags. Jeremy Clarkson, during a Top Gear, a UK motoring magazine/TV show, test-drive, likened the interior of the original XK8 to sitting inside Blenheim Palace. In 2005 the grille design of the XKR was refreshed.

Only 600 XKR Silverstones were made, in celebration of Jaguar's return to F1 racing in 2001. It featured a Platinum paint finish, high-performance package (with the same engine as the standard XKR, but improved transmission, suspension and brakes), 20" Silver BBS "Detroit" wheels and a custom interior.

Built to celebrate the centenary of Jaguar's founder, 500 'XKR 100' coupés and 500 convertibles were made in 2002. The XKR 100 featured an Anthracite paint finish, Recaro seats, 20-inch BBS alloys, Brembo brakes, and custom interior.

The convertible-only Portfolios were produced in 2004 exclusively for the US market. Of the Portfolio models, 100 featured unique Red paint with matching Recaro sports seats and interior, whilst the remaining 100 had Blue paintwork and interiors.

There is also a 2008 Portfolio model planned which will be available worldwide, featuring the most powerful brakes featured on any production-line Jaguar.

Jaguar XJ-S, part 3

The XJ-S was re-engineered in 1991 and renamed XJS, with a convertible waiting one year. The rear windows were enlarged, though the flying buttresses stayed, as designer Geoff Lawson argued that they were part of the car's character. The car got a new 4-litre version of the AJ6, and the V12 was upped to 6 litres in 1993/1994 (227 kW (304 hp)). At the same time the car benefited from a revision to the rear brakes, they were now fitted with outboard rear disc brakes, instead of the more complicated inboard items on previous models. With the introduction of the 6.0L V12, the transmission was also updated to a GM 4L80E with a 4th gear overdrive. These changes begin the "face-lift" for the aging XJS. A 2+2 convertible was also introduced, as was a customized insignia line. In 1994 the car received more aerodynamic front and rear bumper fascias, which completed the face-lift. 1994 was the only year the 6 cylinder with 5 speed manual transmission XJS was exported to the United States. Exact production figures are unknown, though it is likely there are fewer than 10. In 1995 substantial revisions were made to the 4-litre AJ6 engine which became the 4.0L AJ16 with coil on plug ignition being the most noticeable change. The car was discontinued in 1996, after 21 years in production. It was replaced by the XK8.