Come April Fools’ Day, follow that dollar bill at your own risk and be forewarned if you wake up with a face full of foam. Whether they were the victim or the prankster, we asked other MSN users to share their best April Fools’ Day pranks. The responses are likely to amuse you and offer some helpful hints on how you can pull off a memorable April 1 joke.

This year's Geneva Motor Show was rife with fabulous vehicles, showing — once again — that the auto industry is not only on the mend, but gaining pace. And you all know what that means: more and increasingly ambitious concept cars. Ironically, they all have to compete with an odd little Morgan 3-wheeler, which would be a concept for any other company. But here in Geneva, it's the first showing for a car that will actually be in customers' hands within a few months. So it's not part of this slide show. However, here are our 10 favorite concepts from the show floor. They illustrate both what may be in showrooms within a year or two, and the stylistic extremes that ooze from a car designer's mind.

Amazing Autos Unveiled in Switzerland

Cars are appealing for many reasons. Quality and reliability are two of the most common, as are luxury, performance, fuel economy and cargo space. Odds are, however, that no matter how gifted a car is in any or all of these areas, it won’t get anyone’s heart thumping if it doesn’t look good. Among the numerous unveilings at the 2011 Geneva International Motor Show were a slew of drop-dead gorgeous cars, most of which are double threats; they offer superior performance to go with their stellar looks. Here, we present our 10 favorite lookers from the Swiss Alps.

 Collection of the most unusual, innovative, and creative go-kart designs.

The first time I've seen such an original way of parking. The girl handed over back, and that's what this maneuver succeeded.

A new era for the police vehicle is upon us. The age of the tried and true Ford Crown Victoria is finally drawing to a close, and there is no shortage of suitors — ranging from awe-inspiring to yawn-inducing — lining up to replace it as Johnny Law's preferred transport. Here's a quick rundown of what will be protecting tomorrow's streets, as well as what you should be keeping an eye out for on the side of the road and in your rearview mirror.