JLR have Rover and I fully believe that the XE and XF would sell far better if they gave them a facelift to make them match Range Rover styling and interior design, then stuck the Rover badge on them.
The only Jag anyone cared about was the F-Type and they don’t make that anymore. At the very least they’d be able to fully unify their brand.
Rover, Saab, Holden and Pontiac. All unfairly killed off.