Step 17: Brazillian Delivery Bikes
Most of them have front baskets supported by automobile springs. The small front wheel underneath the front basket helps with road friction and stability.
I'm a huge fan of their motorcycle-style kickstands.
Each one appeared to be custom-made. They use very thick, strong tubing. The rear racks were especially well supported. The front axle must also be very strong, as the kickstand and the front load are all mounted entirely on the axle.
Bikes with two front wheels and pushcart-style steering tended to have really neat rod brakes using a foot pedal to brake, just like a car.