Cadillac developing convertible?

The convertible could be billed as a heir to the Corvette-based XLR.

A new report indicates Cadillac is preparing to expand its lineup with a convertible.

Speaking to Automobile Magazine, Cadillac chief engineer Dave Leone hinted the company is debating whether or not to introduce a topless variant of the ATS Coupe. A convertible based on the ATS was planned from the very beginning of the car's development but the ragtop was put on an indefinite hiatus for reasons that remain unclear.

If launched, the ATS Convertible will likely pack the same four- and six-cylinder engines as its hardtop counterpart. It will give buyers an American-built alternative to the BMW 4-Series Convertible, the Audi A5 Cabriolet and the upcoming topless version of the Mercedes-Benz C-Class.

A second theory brought forward by Automobile suggests Cadillac's convertible will be bigger than the ATS and billed as a heir to the slow-selling Corvette-based XLR (pictured) that was built between 2003 and 2009. Last year, Corvette chief engineer Tadge Juechter confirmed the seventh-gen 'Vette's platform will not underpin a second nameplate, meaning Cadillac's XLR successor will have to ride on another one of General Motors' rear-wheel drive platforms.

If the rumor proves true, additional details about Cadillac's new convertible will emerge in the coming months. A timeframe for when the roadster will debut was not given, but we wouldn't be surprised to see it land in showrooms in two or three years regardless of what form it takes.

Cadillac on the OffensiveCadillac is in the midst of a full lineup expansion. In addition to designing the aforementioned convertible, the company is in the early stages of developing a rear-wheel drive entry-level sedan aimed at the Audi A3 and the Mercedes-Benz CLA-Class.

Additionally, the company will introduce performance-focused V-badged versions of the ATS and the CTS in Los Angeles and in Detroit, respectively, and it will finally present a full-size S-Class-fighting flagship sedan tentatively called LTS at next year's New York Motor Show.

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