Jaguar will expand its line-up in 2013, with the launch of a new flagship model – the 542bhp XJR saloon.

Making its global debut at New York International Auto Show, the XJR will become the fifth model in the R performance line-up joining the XFR, XFR-S, XKR and XKR-S.

As with other R models, the XJR is powered by a 5.0-litre supercharged V8 engine, but whereas the XFR and XKR make do with a 503bhp and 625Nm, the XJR gains the 542bhp and 680Nm engine from the XFR-S and XKR-S.

Featuring a bespoke chassis with subtle aerodynamic developments, the XJR is likely to become the first mainstream Jaguar priced above £100,000.

The XJR joins a range of five existing XJ models including XJ 3.0L V6, XJ 3.0L V6D, XJ 5.0L V8, XJ 5.0L V8 and the 503bhp XJ 5.0L Supersport.

Adrian Hallmark, Jaguar’s Global Brand Director, said during the announcement “The new XJR epitomises the three pillars of technology, performance and contemporary design which the Jaguar brand stands for in the twenty-first century, while delivering new levels of dynamic ability in a luxury saloon.”

We’ve always had a soft spot for the new XJ, which feels like a much smaller car when driven quickly. No doubt the ‘R’ version will raise its already considerable talents even further.