what do You think is the best software to use to create good quality time-lapse videos from photos?
Later versions of VirtualDub that accept image-sequences as File input.
is it possible to use the ixus 860 with power from the cigarette lighter in the car?
I am assuming that the car battery is 12V in most countries.
You would need a switched-mode power-supply module that accepted 12V input and generated a voltage close to 4.3V at 1.5 amps.
Alternatively, a sealed 6V lead-acid accumulator with a couple of diodes in series to drop the voltage to about 4.8V.