Britain's Jaguar Land Rover on Thursday posted a 61.1% surge in fourth-quarter sales as production normalised after a hit from a cyber incident last year. Over the past year, the Range Rover manufacturer has contended with challenges ranging from uncertainty around global trade policy to a cyber attack that halted production, and most recently, a fire at one of its suppliers. While the 95,300 units sold to dealers in January-March were a sharp rise from the previous quarter, they were down 14.5% from a year earlier.