How do you choose a vehicle for a gta online heist?

The only verified information available from the source describes Grand Theft Auto Online as a multiplayer action‑adventure game set in the fictional state of San Andreas. It outlines the game's release dates, platforms, and general gameplay mechanics, but it does not mention specific heist missions, vehicle types, or strategies for selecting vehicles in heists. Therefore, no guidance can be drawn from the supplied evidence regarding how to choose a vehicle for a heist.