You only ever need one. A single lift in the garage serves the whole team, so only one player has to spend scrap on the blueprint, and that player crafts it. The bill is nearly the elevator's: the same metal fragments, the same lone gear and a little more high quality metal.
Timing is the real question. Learn it the day someone drives home a car worth keeping, not before. A lift with no car on it is research scrap spent on a garage ornament, while a car without one can only be driven the way you found it.
Hold a gear back for it. Before a Level 3 bench, gears come only from crates and the recycler, and the day you find a good car is a bad day to learn that the last one went into a door.
Questions
Modular Car Lift ×10: how many resources?
High Quality Metal ×50, Metal Fragments ×2,000, Gears ×10.
Which workbench does Modular Car Lift need?
Workbench level 2.
How long does Modular Car Lift take to craft?
25 s for one, every step included.
How much scrap does researching Modular Car Lift take?