Although the 2010 Lexus IS C lineup has two fewer doors than its sedan counterpart, the coupe/convertible is actually a larger car. The reason for this is that Lexus wanted the IS C to feature a usable trunk, even with the top down, and to provide ample amounts of rear seat passenger room. While the Lexus IS C succeeds in accomplishing the latter, its success with the former is debatable.
Passengers inside the new 2010 Lexus IS C lineup will surely be surprised at the amount of space afforded by the capacious interior, especially up front. Jalopnik reports that the front seats, which are “unique to the convertible,” get a “thinner frame to maximize rear legroom,” and Edmunds asserts that the seats “offer support without making a point of it.” The rear passenger area houses two seats divided by a center console, and unlike with some coupes and convertibles, reports read by TheCarConnection.com show that the rear seat is actually livable. Motor Trend reviewers feel it’s possible “to pack a pair of adults in back for moderate jaunts,” but Kelley Blue Book warns that “normal-sized adults may find them too confining for longer journeys.” Compared to the IS sedan, Autoblog says the Lexus IS C suffers from “five inches less leg room, eight inches less shoulder room, and ten inches less hip room” in the back, though “it’s not as bad as it might sound—if the driver isn’t an NBA guard…a person of average height will be fine for a local trip.”
One of the benefits of the extended length of the 2010 Lexus IS C as compared with the sedan is that it allows for a modicum of trunk space even with the hardtop stowed. Autoblog has measured that, “with the top up, you get 10.8 cubic feet of space” in the trunk, while “with the top down, you’ll have 2.36 cubic feet to work with.” Motor Trend reviewers are quick to point out that the Lexus IS 250C and 350C models have “more trunk volume than do many retractables,” but ConsumerGuide cautions that “cabin storage on both body styles is mediocre.”
Lexus might be trying to undercut the competition in terms of price, but that doesn’t mean they’re willing to sacrifice when it comes to quality. Car and Driver isn’t surprised to learn “the IS convertible features Lexus fit and finish,” while Jalopnik feels that “everything from the leather to the most inconsequential switches are top notch.” ConsumerGuide agrees, giving the 2010 Lexus IS C high marks for its “rich-looking upholstery, soft-touch surfaces, and high-grade plastics.”
A hardtop convertible has both pros and cons when compared to a cloth retractable, but one of the biggest pluses is that a hardtop is significantly better at providing a quiet cabin environment with the top up. ConsumerGuide describes the wind noise as “modest, and wind rush isn’t intrusive top-down in the convertibles at highway speeds.” Other reviewers offer similar assessments, with Motor Trend claiming that, “with the top up, there’s nary a squeak or creak from the top—impressive—and minimal windnoise.” Overall, the Lexus IS 250C and 350C convertibles are very quiet and refined at cruising speeds.