There's also many cars driving round with either one headlight and a side light or just one headlight
and to take up fanriffics point about hard to see indicators, some modern cars (not really into cars so don't know makes/models) have small circular indicators located inside larger circular rear/brake lights so when the rear lights are on the indicators are hard to see when used.
indicator lights should be large enough to be seen and should be located on each corner of the rear of the vehicle - not tucked away inside another light just because it looks different/edgy/fashionable (struggling to find the right word!)