Regulo, Yes, the 70´s car was great, with some few exceptions! As i live in Sweden with some snow, i admire people in the 80´s driving a rear wheel Volvo 240 or Ford Sierra with bad tyres without any anti systems at all.
About the ligts in cars, I started my Company repairing cars and boats 1991, I have followed the change, and experience the problems when new things are invented.
The turn lights for example, old cars uses a bi metal(i hope this is the correct Word) a small metal part that actually changes in dim. in temperature, so when you added a Power app. 40W(back and forward turn light) the bi metal expands and cuts the Power to the lamp, as a relay, when it cools down it connects agan, and this gets the lamp to flash correct.
Semi old cars gets simple electronics, actually a timer IC( example a simple 555) to Control the flashing of the lamps.
New cars have computers to controll everything, and you can adjust all parameters, if you konw how to do.
New cars with LED´s in turn lights have a interesting feature(not all) as you know a LED lights up VERY! fast, compare to a normal bulb, it can feel little sterssfull to see the very fast flashing, therefore some cars controlls the start up and shut down for the flashing to have it more to look like a old lamp.
Back lights of new cars are interesting, If you decide to mount a trailer coupling on a VW Tiguan for example, all the mounting is simple until you get to the electrical, this is tricky, the back lights and the brake ligts have just one! + Cable, interesting, this is how it works, the lamp gets +5V for lights, but 12V for brake lights, how do you solve this in the trailer coupling?, you myst have a special CAN-BUS trailer Electric wires, that actually separates the +5V and +12V into two different Cable with +12V controled by the 5 and 12V, you understand what i mean.
More to the can-bus and lights, some cars Controls the back up light(the White ones) when you have a trailer connected, it simply does not light up the ones on the car, as they will only light up the traier and you will not see anything, very smart, but difficult to control without a computer.
So conclution: can-bus + lights = true love!
About the ligts in cars, I started my Company repairing cars and boats 1991, I have followed the change, and experience the problems when new things are invented.
The turn lights for example, old cars uses a bi metal(i hope this is the correct Word) a small metal part that actually changes in dim. in temperature, so when you added a Power app. 40W(back and forward turn light) the bi metal expands and cuts the Power to the lamp, as a relay, when it cools down it connects agan, and this gets the lamp to flash correct.
Semi old cars gets simple electronics, actually a timer IC( example a simple 555) to Control the flashing of the lamps.
New cars have computers to controll everything, and you can adjust all parameters, if you konw how to do.
New cars with LED´s in turn lights have a interesting feature(not all) as you know a LED lights up VERY! fast, compare to a normal bulb, it can feel little sterssfull to see the very fast flashing, therefore some cars controlls the start up and shut down for the flashing to have it more to look like a old lamp.
Back lights of new cars are interesting, If you decide to mount a trailer coupling on a VW Tiguan for example, all the mounting is simple until you get to the electrical, this is tricky, the back lights and the brake ligts have just one! + Cable, interesting, this is how it works, the lamp gets +5V for lights, but 12V for brake lights, how do you solve this in the trailer coupling?, you myst have a special CAN-BUS trailer Electric wires, that actually separates the +5V and +12V into two different Cable with +12V controled by the 5 and 12V, you understand what i mean.
More to the can-bus and lights, some cars Controls the back up light(the White ones) when you have a trailer connected, it simply does not light up the ones on the car, as they will only light up the traier and you will not see anything, very smart, but difficult to control without a computer.
So conclution: can-bus + lights = true love!