Swedish designed speed bumps are effective Swedish designed speed bumps are being installed in Sweden and they are very effective. Facebook Prev Article Next Article Cars Checkout these cool gadgets... Related Posts World's Fastest Street Legal Car – 0 to 60mph in 1 sec Spy Hunter + Pontiac G8 GT Half Coupe, Half Convertible from Ukraine Future Cars Will Have Very Different Tires Superbike with a Jet Engine – 350HP Rollys-Royce Car That Runs 200 Miles On Compressed Air