The chief executive of Jaguar Land Rover has warned that supply bottlenecks resulting from a "no deal" Brexit could bring to a halt production at the company's UK car plants. Ralf Speth said that, with JLR producing 3,000 cars daily and relying heavily on "just in time" supply chains where parts are delivered shortly before they are used, he would be "very, very concerned" if there were blockages in the supply of parts. He told Sky News: "Just one part missing could mean stopping production at a cost of £60m a day. That is a huge risk. We depend on free, frictionless, seamless logistics." Dr Speth also repeated his warning, made in early July, that a hard Brexit would cost…