What he said.
Out of curiosity what is it about LED lighting makes this a deciding feature? I only speak for myself of course but it seems you'd choose passenger cars because it's the right model/style/era, or right road name, etc. rather than if it had LED vs. incandescent bulbs.
I assume you are specifically referring to the interior lights. There have been cars using bulbs for interior lighting but LEDs for, say, the marker lights. Also, if you're operating conventional mode the issue of what is often called constant-voltage lighting (same brightness irrespective of track voltage) is not a given just because it's LED technology. Likewise, flicker tolerance is not necessarily a given just because it uses LED technology.
Just want to be sure you're getting what you want!
