Ford (NYSE:F) and Toyota (NYSE:TM) made headlines two years ago when the two auto giants said that they had joined forces to create a hybrid drivetrain for full-sized pickup trucks and SUVs. The alliance made total sense: Toyota is the hybrid leader, and Ford is the pickup leader (and no slouch in hybrids), and if anyone could come up with a breakthrough fuel-efficient pickup drivetrain, it seemed like these two working together would the best shot.

Well, it's over. The two companies said this week that they had dissolved their arrangement, with Ford saying it was on track to develop its own hybrid pickups -- without Toyota's help. In this video, contributor John Rosevear looks at the details of the split -- and at why Ford's recent success with hybrid cars likely spelled doom for this deal with Toyota.

Fool contributor John Rosevear owns shares of Ford. Follow him on Twitter at @jrosevear.The Motley Fool recommends Ford. The Motley Fool owns shares of Ford. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.