SHANGHAI, April 19 (Reuters) - BYD Co Ltd , a Chinese car and battery maker backed by billionaire Warren Buffett, expects car sales volume to return to an upward trend in April and plans to export electric buses by end of 2011 or in 2012, its spokesman said on Tuesday.
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"April is traditionally a good month and our sales have started to increase in March from February," Paul Lin, the marketing manager and spokesman for BYD Auto Overseas, told Reuters in an interview at the Shanghai auto show.
BYD hopes to sell 10 to 15 percent more cars this year from 520,000 units in 2010. This compares with BYD's estimate of a 10 percent rise in volume sales in the China market. (Reporting by Alison Leung; Editing by Jacqueline Wong)