For example, avoid the trap of over-calculating the exact number of seconds required for a car going 187mph to catch up with a car going 193mph.
What? A car going 187mph isn't going to catch a car going 193mph. The faster car is going to keep pulling away. If the two speeds were switched, it would make more sense. And if you're wondering, a car going 193 mph would catch and overtake a car going 187mph as long as it started within 131 feet of the other car.
The speed of the ramming/attacking vehicle must exceed 10mph of the vehicle it is attacking. Speeds greater than 10mph above the defending vehicle's constitutes a crash;
Huh? Is there a word missing in that first sentence? "Must exceed 10mph of" makes no sense. "Must exceed by 10mph" makes sense, but then according to the second sentence that's a crash. I think the first sentence should be -- The speed of the ramming/attacking vehicle must be within 10mph of the speed of the vehicle it is attacking.
So, anyone else have any others or care to comment?