Semi-autonomous model hints at the future.

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Infiniti hints at the future design of its midsize SUV with the QX50. Its flowing lines resemble other, newer members of the Infiniti family, like the smaller QX30. The concept has an advanced semi-autonomous driving system that can take over for the driver in some situations, like stop-and-go traffic. It also has a significantly more efficient engine. Infiniti is expected to build a model very close to the concept version that will go on sale next year.