The accident which killed British racing driver Dan Whedon yesterday in an Indycar race at Las Vegas has raised a number of safety questions, including the wisdom of running 34 open wheel cars on a tight 1.5 mile oval track such as Las Vegas with an average speed of 220mph. But it has also revived discussion about the possible use of canopies to make the drivers safer in the cockpit from flying wheels or debris, as happened with Felipe Massa and Henry Surtees. The FIA Institute has done some work in this area and produced some interesting content in the More…