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Originally Posted by scoupedy
you can always tell someone that doesn't use the cruise control- they slow down when going up hill and speed up when going downhill that and the broadrim hat on the parcel shelf
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You can always tell someone that doesn't fully know what exactly is happening on the road around them. Scary.
Perhaps that is cruise control in action?
Some cruise systems are really quite hopeless, especially aftermarket jobbies that aren't calibrated properly.
Also cruise control systems are not able to sense the landscape around the vehicle, they merely monitor the speedo sensor and make adjustments to maintain the set speed, which means that there can be a time of speed fluctuation. Especially when ascending/descending hills.
I have a Petrol Landcruiser at the moment with cruise, and this thing will run out of puff on some decent climbs from 100km/h, the cruise can't provide extra power to overcome this, the pedal is to the metal.
Then the other side of the hill is where the cruise will shoot the vehicle back to the set speed, then set speed is overtaken. Cruise control does not utilise the brakes you know.
Yes there are some european cars now that have sophisticated systems that are better than this but i'd guess 99% of vehicles on the road don't have such features.