Automotive electrics have come a very long way since the last XK150 was built and some of that new technology is now available to upgrade XKs and allow the use of a wide range of equipment. In particular, the advent of the alternator means that you can use all your electrics at the same time without fear of a flat battery. Batteries too have come a long way and the once common problem of a flat battery on a cold morning is rare today. In fact there are few electrical parts of an XK that you can’t upgrade to make your car more reliable and suitable for the fitment of electronic gizmos. The following paragraphs tell what you can do to make your car even better and more reliable.