Jack for vehicle

I have a question that I am hoping I can get an answer to...

PLEASE NOTE: the following pertains to changing a flat tire on the road only...not for working on the vehicle.

My wrenchin' days are long over so I know nothing about this, however, I see, and have heard, the jacks supplied with vehicles nowadays are garbage, even compared with the old bumper jacks we had way back when. I used to carry an old scissor-jack and a large L-head lug wrench and a large speed or spyder wrench as well. Nonetheless, that was then and my question is this; what would be a good jack for a modern vehicle, i.e. PU-truck, van, or car? I assume the wrenches are still good but the jack behooves me.

Help on this would be greatly appreciated.

Generally speaking, the OEM jacks that come with your vehicle should be more than adequate for changing a wheel in an emergency situation. If your are looking for a better jack, like for swapping out summer and winter wheels/tires for example, a floor jack would likely be a better bet.

For a truck that may be loaded, small bottle jack comes in handy.
Car/CUV, factory jack since they go low enough to clear body moldings with a flat tire.

OK, thanks for the input...