SHOPPING for a motoring gift can be frustrating in Hong Kong. The market is too small to support the imaginative gift industry that flourishes in Japan or the United States, despite the fact that most of the products available overseas are made locally, or just over the border. However, there are gifts available to suit every pocket, and in true Hong Kong style, it is as easy to blow a few million dollars as it is to buy a trinket. Starting at the top with Rolls-Royce: the British luxury car firm is offering a custom building service by the craftsmen of the Mulliner Park Ward coach-building firm. Before 1947, all Rolls-Royce motor cars were coach-built - the chassis and engine were delivered to the coach works for the body to be laboriously built up by hand on the rolling chassis according to the customer's design. Now Rolls and Bentley buyers are again invited to take an active part in designing the upholstery and fittings to produce a vehicle that is unique. The craftsmanship of Mulliner Park Ward can be traced back to the horse-drawn carriages of the early 1700s and the only restrictions to the scope of its work are considerations of safety and taste - a jacuzzi is not considered appropriate for a Rolls-Royce motor car. The Touring Limousine Rolls-Royce is a worthy base for the coach builders. The local cost is $5.39 million, and the price rises steeply as soon as Mulliner Park Ward becomes involved. A set of silk curtains costs $43,500 and, according to Holger Gossman, manager of Dodwell Motors, the Hong Kong Rolls-Royce distributor, ''the sky is the limit''. Unfortunately, custom building a Rolls takes up to six months, so this present will have to wait until next Christmas. On a slightly more modest scale, Dodwell Motors offers a few options that can be fitted after-sale to standard Rolls-Royce cars. Wood-veneer panels for all doors cost $12,000 and footrests for the rear passengers are $3,000. Picnic tables that fit to the back of the front seats cost $25,000 and CFC-free fire extinguishers are $1,200. There are various independent firms offering a similar service for Mercedes-Benz cars, but the company itself employs the sister company of AMG to produce sporting derivatives of its vehicles. AMG is behind the devastatingly effective Mercedes Touring Car race machines and its products can turn the saloons into something close to the racing cars that can be seen competing in the German Touring Car series. All engine work is undertaken in Germany, which means an engine exchange is necessary - obviously this is a time-consuming and costly business. It is probably better to buy a complete AMG C-Class car from Zung Fu, the Hong Kong Mercedes distributor. This comes with many AMG features, including spoilers, suspension and wheels, and though much less aggressive than some of the company's products, it is more than enough for Hong Kong. Individual AMG parts can be bought, including performance exhaust pipes and wide wheels, but a gift of just the one performance modification will do little more than boost a car's looks. Speedline (Far East) Ltd of Causeway Bay, stocks a wide range of such performance parts, but also carries a range of more down-to-earth accessories suitable for humbler cars. Perhaps most outstanding are the fun wheels available from makers Mille Miglia and Ronal. The Ronal Teddy Wheel is a cute toy bear, complete with a keyhole belly button. The Teddy is not just a gimmick; it is a proper lightweight alloy wheel, with the bear's ears and paws forming spokes. It is available for a wide range of cars, including the Mazda 121 and the Honda Civic. Unfortunately the price is also high: $1,400 for each wheel. Cheaper, and even more fun, is the Primavera (spring) flower wheel from Mille Miglia. For only $800 a piece, you can drive around on bright red, blue, or plain white daisies. Mille Miglia describes the wheels as being for those who ''love their car, without taking it too seriously''. In a similar vein, Momo offers some outrageous steering wheels and gear-shift knobs through its Benetton range. The Evolution 1 steering wheel is a wild mix of clashing bright colours that your loved one will either love or hate. At $1,550, plus the $345 fitting kit, the wheel is not cheap, but the equally bright gearknobs from the same range are a more affordable $345. Better yet, in terms of value, are the AMG watches, priced at $200 to $250; they are smart and plain analogue affairs that go with a suit as well as leisure wear. But for the serious motor enthusiasts the ideal gift is either the Recaro EX office chair, or the fabulous new three-spoke alloy wheels from Antera. The Recaro seat is as comfortable as the firm's specialised competition car seats. The only difference is that it is mounted on casters and carries no provision for safety belts. At $16,000 for the cloth upholstered version, and $21,000 for the leather model, the EX is even more expensive than the firm's car seats, but is perhaps essential office furniture for the car nut. The three-spoke Antera alloys are simply the latest and sexiest wheels yet available. The design of the Opus One is ultimately simple - even the tyre valve is hidden away under the centre cap's housing - and the shape complements the clean lines of the finest sports cars. Owners of expensive sportsters will not blink an eye at the $3,200-a-piece price for the Opus One. A set of tyres for the wheels adds at least a further $8,000 to the bill.