What does your favorite car have in common with ancient rulers, deities, and saints? It too can be immortalized in sculpture, thanks to the stone specialists at Lapicida. The English company has begun using its new computer-numeric-control stone-carving system to produce classic cars from a variety of stones. One of just three such systems in the world, the five-axis machine uses a software program, diamond-tipped drills, and a detailed 3-D model of the vehicle to produce a sculpture from a single block of mar…