Jaguar still testing XEs?

[Hammerhead]

Whilst out and about yesterday, I saw at least 3 XEs which seemed to be pre-production cars on the A350 heading north towards Chippenham. I thought they'd be past this stage now? Anyone 'in the know' know what they'd likely to be testing/calibrating still?

[Hammerhead]

Very light camo markings, no badges on the back, red/white plate on the bonnet rather than the usual place under the grille. All LHD.

Two of them looked like fairly normal models - dinky wheels, no S intakes. Dark blue one had larger rims but didn't notice what intakes it had.

They do stand out in the traffic, head on especially.