Independent test drivers David and Alexander Madgwick, an uncle-nephew team who specialise in economy driving, have been put behind the wheel to ensure fuel use is minimised.
Helping things is the cold weather, which will mean better economy, but dealing with traffic in the United States could be another challenge altogether.
The XF 2.2D is powered by a 2.2-litre turbo diesel engine and mated to an eight-speed automatic with stop-start technology. Because the US hasn't really embraced diesel, this is actually the first diesel Jaguar to ever arrive in the United States.
You can follow the progress of the journey by clicking here, or visit Jaguar's Facebook page (http://www.facebook.com/Jaguar).