Mazda's all-new CX-5 compact crossover (which we told you about earlier today) will be joined by the refreshed 2012 Mazda3 at the Japanese firm's Frankfurt Motor Show stand.
Revealed for the first time at the Toronto Show in Canada in February, which was followed by an appearance at the New York Auto Show in the U.S. earlier this year, the 2012 Mazda3 gains new and more fuel-efficient engines that deliver lower CO2 emissions.
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