16. Two cars are driving on a highway, 100 meters apart, both traveling at 60 kilometers per hour. The highway has different speed points (the speed points are far apart). After each car passes the first speed point, their speed immediately increases to 80 kilometers per hour; after passing the second speed point, their speed immediately increases to 100 kilometers per hour; after passing the third speed point, their speed immediately increases to 120 kilometers per hour. After both cars have passed the third speed point, how far apart are the two cars in meters?
【Analysis】 $\because$ The two cars have the same speed between the same two speed points
$\therefore$ The time used between adjacent speed points is also the same
The rear car needs to arrive at each speed point $\frac{0.1}{60}$ hours later, when the rear car reaches the third speed point, the front car has already left $\frac{0.1}{60}$ hours. So the front car is ahead of the rear car by $\frac{0.1}{60} \times 120=0.2(\mathrm{~km})=200(\mathrm{~m})$