Japanese import vehicles have been called many things over the years-high-quality, well-engineered, fuel-efficient. One adjective that hasn't been used very often, though, is luxurious. The Acura Vigor is certainly a vehicle striven to change that perception, combining many of the best elements of a sports coupe and a touring sedan. In our test vehicle, a 1994 Acura Vigor GS four-door sedan, we found an ambitious and innovative attempt to improve the import sedan in terms of ride, elegance and Performance. For an MSRP of $28,827, our Vigor GS delivered all the power assists, conveniences and safety measures we've come to expect in a luxury midsize sedan, including an AM/FM stereo with cassette and CD players, air conditioning, a lush leather interior and dual air bags-all standard. It also boasted a number of technical marvels, most notably a five-cylinder, 2.5-liter, 20-valve power plant delivering a level of performance that competing four-cylinder import sedans would be hard-pressed to match. Unfortunately, the Vigor GS doesn't reach the upper echelon of luxury sedans because its interior is too small, inches short of what its prime competitors are offering