We have been towing for a number of years, most of it using a pickup truck with purpose made towing mirrors. We have downsided or rig to a 20 ft travel trailer and are considering replacing our truck with a medium to large SUV. We have yet to find one with adequate mirrors. Having a lot of experience towing full width trailers, I have found that typical factory mirrors leave the blind spots obscured, making lane changes dangerous. We have tried the universal clip/strap on variety and found them wanting. Does anyone know of an SUV with optional towing mirrors or one that has custom mirrors available?