There are plenty of romantic drives in Hong Kong. Repulse Bay, South Bay and Stanley beaches are obvious choices, with lots of mountain greenery and cool ocean breezes.
Best sampled at sunset, the Repulse Bay will accommodate you in its lap of luxury, and Stanley (below) has a range of restaurants in the Murray House complex and marketplace. Parking isn't difficult, with both beaches offering metered spaces and car parks.
There's usually less traffic and a more spectacular sea view at Shek O, where you'll find barbecues on the beach, a variety of eateries by the main car park, and a couple of diners in the village offer valet parking. It's also only a two-minute sprint to Big Wave Bay, which is one of the quieter beaches in Hong Kong.
For a drive around the island, there's my usual test route of Victoria Road, weaving from the Pokfulam end of Aberdeen around the west coast towards Kennedy Town. Swing down to Cyberport for a movie or a romantic meal at one of the Le Meridien restaurants, from which (on a clear day) you can see Cheung Chau and beyond. Parking is plentiful at Cyberport, at $40 an hour.
If your date's new to town, you could go up to the Peak - via Cotton Tree Drive from Central; from Robinson Road from the west; or Stubbs Road from the east. Whichever way you go, you'll find a superb hill-climbing route with few traffic lights and twisting action. Once you get to the top, the view of the harbour is breathtaking - although it's best after sunset, which on Tuesday is at 6.19pm.
A less well-known run is up Mount Butler, which is above most of Wan Chai and Central and offers a wonderful perspective of the Kowloon waterfront. Drive past the firing range, all the way to the top - you'll have ample room to three-point-turn when you get to the end.