If you ever get tired of your Innova, the BM315S and BM319S have dedicated automotive functions.
Both the BM235 and the BM257 are quite interesting compact meters, but I couldn't yet justify getting them (too many multimeters).
I usually put the following options on the table for low cost multimeters for low power electronics:
Ultra cheap: the Richmeters RM113D. Quite fast, reasonably featured and with good ranges: 6000 counts, 100MΩ, 100.000μF, 3V diode test, fast continuity, temperature, NCV, flashlight,etc.
Reasonably cheap: the Richmeters AM219/Aneng 870. Reasonably featured meters with plenty of resolution: 20000 counts, 200MΩ, 10.000μF, 3V diode test, fast continuity, temperature, NCV, etc.
The top of the cheapies: UT61E. The most featured of them, with a reasonable balance between features and implementation. 22000 counts, 200MΩ, 200.000μF, 3V diode test, fast continuity, excellent bargraph
If you are looking for a balance between safety, features and low cost, the UT139C is a great alternative. I would put the Fluke 101 on this as well, but I experienced quality control issues with two units bought from different sellers and with different date codes, thus I would be cautious. Also, it is too basic when compared to the other options. If you are looking for safety, though, it is unbeatable.