[fimg=left]http://www.cleanmpg.com/photos/data/506/Smart1.jpg[/fimg]Colin Wright - CleanMPG - Sep. 3, 2011. smart fortwo - In July smart was re-integrated into Mercedes-Benz USA but it hasn't improved it's fortunes so far. The smart is an efficient car, but after an initial burst of enthusiastic sales when it was introduced, sales have dwindled as consumers eschewed the microcar. With the increased array of efficient subcompacts and compacts now available it can only get tougher. Mercedes-Benz USA reported August sales of 20,728 vehicles, a 5.4% improvement over August 2010 (19,674) and the company’s highest August volume since 2007. On a year-to-date basis, the 159,814 vehicles sold represent a 10.5% increase over the 144,689 vehicles sold over the same period last year. Mercedes-Benz Cars The 9th generation E-Class led Mercedes-Benz with sales of 5,628, down 4.3% compared to August 2010. The C-Class, which attracts younger and first-time Mercedes-Benz buyers, posted 4,728 sales, down 22.5% compared to August 2010. The new CLS-Class posted 765 sales, up from 84 last year. The new SLK roadster posted 136 sales, up 138.6% compared to August 2010. Sales of diesels were up 14.7% to 851. Sales of the high-end S class were up 17.9% to 981 and 32 SLS AMG supercars were sold. Sprinter Vans Sales of Sprinter Vans increased by 117.7% for August with sales of 1,846 – bringing a year-to-date total of 10,673 (up 121.3 %). smart Sales of the smart fortwo totaled 405 vehicles for the month, down from 1,622 last year. Automobile Manufacturer's US Sales Rank - August 2011 vs. August 2010 Comparison and Total Sales GM August Sales up 13.4% with 218,479 vehicles sold. Ford August Sales up 7.0% with 175,220 vehicles sold. Chrysler August Sales up 25.6% with 130,119 vehicles sold. Toyota August Sales down 16.1% with 129,483 vehicles sold. Nissan August Sales up 17.7% with 82,517 vehicles sold. Honda August Sales down 27.2% with 82,321 vehicles sold. Hyundai August Sales up 4.9% with 58,505 vehicles sold. Kia August Sales up 22.0% with 41,188 vehicles sold. VW August Sales up 6.2% with 25,232 vehicles sold. BMW August Sales down 4.0% with 23,924 vehicles sold. Mazda August Sales up 10.2% with 22,632 vehicles sold. Subaru August Sales down 9.9% with 20,837 vehicles sold. Mercedes-Benz August Sales up 1.3% with 20,728 vehicles sold. Audi August Sales up 6.8% with 10,201 vehicles sold.