Aren't most Fluke DMMs 10A max for current measurements?
With all due respect to the guys discussing high levels of protection versus cost, I will attempt to put my own spin on it.
I look for certain features on an Automotive meter before I consider safety and cost
(This is assuming your not working on Hybrids etc). Basically your going to be using it for 12v DC the majority of the time and in series Amps measurement up to a max of 20A.
1. You need a backlight for auto work (Fluke 70 don't have one)
2. Min/Max record is a must
3. A bar graph is good
4. Temp measurement is useful
5. DC current up to 20A or a DC current probe
6. Fast updating/ large clear LCD display
7. Good holster with a decent bail stand
8. Easy to replace fuses
9. Quality switchgear and function buttons
10. Millisecond pulse width function is much better than other automotive gimmicks like dwell/RPM
11. Frequency in hZ is good for certain signals
The beauty of Flukes is that they are tough and well made and have good features on basic models for what I think a fair price.
Some cheaper meters are just garbage, although you will mostly get reliable results on 12v DC but bits will fall off and the slow screen will miss glitches.
Match the meter to your skill level but don't cheap out too much (get something that's nice to use, like all tools if you like it you use it more and get better at it).