Ugh, the touch screen inside the Jaguar XK is awful. First, it washes out in sunlight, and that's before dropping the top. It requires precise amounts of pressure in precise locations, and even when used with care often returns undesirable results. Plus, it's slow to react to certain inputs. Based on what's installed in the Jaguar, it's clear that product planners didn't benchmark a single competitor to design this system. It's almost as though they thought: As long as we don't do an iDrive system, we're all good!