Is that true, though? Here (UK) Kia and Hyundai offer seven year warranties, and most of their products are competitive against Peugeot/Renault.
In fact, they specifically poached a number of former executives from BMW's M division to lead those projects.
But when it comes to warranty you should take care, people imagine this is like the warranty on their phone. It's not, basically it says the body won't rust. The rest is covered by dozens of other clauses that more or less just guarantee than almost nothing gets replaced under warranty.