Yes, I never could did find that believable. Also, if Rick came to a bit, you'd think he could have managed to get help. Despite all of the holes, you can still go with it and enjoy. And Pleasance' acting was one of the things I loved. His anger towards his brother and his pretentiousness were fantastic.

As for the car, I picture Karen in something a little smaller and more economical, so I'm going with the pool car to run errands and business trips for the winery for the employees:)