How much light output do you need? For that I have a Fenix LED TK60 that is bright enough and has the reach to drive with. Around $120, if I recall correctly. Great on a dark night when I have to look around. More powerful than the 12V spotlights of old. BUT, it's able to go though it's 4 D cells pretty quickly. Suggested by a Houston cop who uses one as his patrol car carry...a guy who posts on the Bullitt Mustang board.
Then, for indoor use, I have these scattered throughout the house, called Pak-lite. The super glow tops are my favorites. Also have 'em stuffed in the cup holders of each car. On bright, you can easily watch your step...on dim, you could read a newspaper. And the hours of burn on a single 9V battery is amazing. The genius of the design is that the 9V battery is the handle. Made by a family in Southern Oregon. If I could have only one flashlight, this would probably be my choice.
Pak-Lite's Official Website (9v LED Flashlights) - Pak-Lite's Official Website