allegedly, tra encountered legal troubles with hyundai-mobis during the delivery of the cars, as the order had been placed with daewoo shortly before the company merged with the hyundai-mobis. the latter disagreed with the terms of the contract, and a lawsuit was filed by tra. however, the suit was settled out-of-court, with mobis given the go-ahead to finish tra's massive order of emu500-series commuter trains from daewoo, while tra was given the option to purchase new emu600 series trains and received its e1000 cars under the original contract.