The regular Escape saw 167, 678 American unit sales last year, but a 15, 000- to 25, 000-unit target sounds more appropriate for a hybrid.

FORBES: Forbes First Drive: The First American Hybrid

Conventional defence systems use one rotating radar unit to find a target and a second to subsequently track it for risk assessment.

BBC: News | In Depth | Military Fact Files

An e-petition aimed at trying to save a children's heart surgery unit in Leicester has exceeded the target it needs to secure a parliamentary debate.

BBC: Glenfield heart surgery e-petition exceeds target