you ALL have it wrong!
I carry a Princeton Tec Quad or EOS
HEADLAMP... how many of you on a cold rainy night when you break down on the highway are going to change out your tire by trying to 'prop' your flashlight at just the right angle to change your tire... or try to check your oil with a flashlight in your mouth or in do the task one handed...
Using a headlamp will allow you to work in a dark environment without having to think about your flashlight... I keep a pack of sealed lithiums AAA's so that if the set I have in the headlamp goes out I have the best backups that money can buy... Even if those cells go out... any gas station in america will have AAA's... they won't always have 123A's...
These lights last a LONG time and provide plenty of light for any hands on task... while not being anoying... they are waterproof and impact resisant... and will aid if you need to walk from your vechile to a gas station miles away... You have your path perfectly illuminated while keeping your hands free... They have a blink mode built in as a warning beacon if your broke down (so cars can see you) while also having three levels of regulated light thats bright enough to walk around to being able to simply read a map...
This is a the light for a car...
p.s.
for my spotting I use a ROP HI 2" FM Bezel 2C 2x18650... but the headlamp is used much more