Muhaha Did it!

With only the car bomb and razor wire.
Spoiler
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1. Walk to near the open grate in the center
2. Wait for the driver to take a pee
3. When the people have moved by, choke him.
4. Drag the body into the grate area (far in).
5. Grab the suit, get out grab the gun (holster).
6. Go to drivers door and take out the bomb and plant it. You have to walk to the door.

Anything else makes the guard suspect.
7. Walk back to the alleyway, then run like the clappers to the grate.
8. Put back on your own clothes.
9. Walk to the corner that gives you the view of the Blue Lotus+Red Dragon guards.
10. Take out the remote and wait.
11. When the car drives by the corner your on press the button. It will take out the blue lotus guards too.
12. Run like the clappers back to your car.
The gun you can sell for bonus points.

I'm guessing if you stay in the drivers costume the guy comes looking for you which is why the car never moves.
[This message has been edited by Hobbes (edited 30-11-2000).]