Here's another photo for you HSD68. The B&O F3 on the left is a single motor F3 from MPC shown side by side with the "Neil Young" edition F3 from several years ago.
Despite the single motor, this MPC model is a robust puller and the original (and noisy) e-unit is still going strong. I've resisted the urge to upgrade my MPC's to more modern electronics even though I operate in a TMCC environment. There's something nostalgic about the original electronics, although maintaining those e-units is a challenge!