Qt is basically unrivaled in this space in my opinion. If you really control your hardware and software, it seems like its easier for you to just comply with the LGPL requirements. You can find some other vendors for similar software with Google but they aren&#x27;t as &#x27;attractive&#x27; and &#x27;responsive&#x27;. That being said I think IVI systems will start looking at web rendering soon if they haven&#x27;t already. If the LGPL is a show stopper for you, you can always give CEF a shot to see if its fast enough (though I&#x27;ve always been confused about CEF because I thought it used WebKit which was LGPL)<p>Also depending on how complex your UI is going to be you can always take the crazy route and roll your own. If your scope is very specific and limited, it wouldn&#x27;t be that bad.