A lawyer who says he was injured when his new Porsche's air bag inflated is suing the car-maker and the Hong Kong dealers, Jebsen and Co Ltd, for more than $100,000. David K. L. Law's right hand was injured to the extent that he is unable to carry heavy loads 'for instance, a dozen bottles of beer', and he has lost 10 per cent of his earning capacity, a High Court writ claims. Mr Law, 40, was driving his new red Porsche 911 Carerra coupe along Cotton Tree Drive towards the Peak on the night of May 3 last year, three days after buying the car, when he sounded the horn and the air bag suddenly expanded, the writ says. The accident caused small fractures to his right hand and medical examinations showed a two per cent impairment to Mr Law's right little finger, and a 25 per cent strength loss to the whole hand, it says. 'Before the accident, he enjoyed tennis, swimming and other outdoor activities. 'As a result of the accident, he cannot play tennis.' Mr Law, who is right-handed, cannot write for prolonged periods of time, and has remained 'psychologically affected by the reliability of air-bag systems in motor vehicles', the writ says. He wants $100,000 for lost earnings, $10,000 for medical expenses and $16,000 for 'tonic food'. Mr Law is claiming Porsche was negligent by failing to take adequate care in making the car and by not enforcing adequate safety checks.