A CAR salesman who fiddled his taxes was fined $81,000 and given a two-month suspended sentence yesterday. Alec Louie Shiu-keung, who worked for Crown Motors, falsified claims for outgoings and expenses over three years up to April 1991. As a result, his taxable income was underestimated by a total of $283,566, saving him $45,297. Louie, who admitted three charges of tax evasion, had his sentence suspended for 12 months and was also ordered to pay $6,000 costs by Western Court magistrate Jonathan Acton-Bond. The maximum sentence for tax evasion is three years and a fine of $20,000 for each charge, increasing to $50,000 if the offence was committed after July 18.