4: Honda Odyssey
Honda products have the reputation for being reliable. And while the Odyssey was popular, the van did have an expensive defect. The first and second-generation models of the Odyssey are widely known to have faulty transmission. The transmissions in these vans can fail at any time and will cost an arm and a leg to repair (via Readers Digest).
Another problem that the Odyssey is common for is the need for a valve job, which can happen at odd periods throughout the van’s life. The problem is that only a certified Honda professional can do this, and the repair is expensive. Needless to say, these early-model Odysseys might have been nice but repairs were pricey.