3 ms·

One should however take into account that the aerodynamics of cars changed considerably the past 20 years possibly leading to less by-catch.

• saiya-jin 8y ago
  probably true to some extent, but then driving experience of some older car (many of which still work perfectly fine) should cover this possibility
• Tepix 8y ago
  That doesn't really explain why even the license plates remain clean, does it?