Arguably it won't be worn out oily bits that eventually kills off many modern classics. It'll be electronic issues. But never mind, because Porsche electronics specialist Bergvillfx is kicking that particular can down the road with its fully refurbished Bosch KTS 301 diagnostic tool, complete with a new Nimh battery, charger and OBD cable. Reportedly, the latest official PIWIS III tool does not support 944, 968, 964 and 993 models. A gap has thus opened up for a classic OBD tool with back-catalogue compatibility. Bergvillfx says it has even sold sold several KTS 301 Hammers to official Porsche Classic service centres. For the record, there are some provisos concerning compatibility with certain 993 model years, so head for bergvillfx.com for more details. Pricing is $1290 plus tax and shipping, so roughly a grand in old money.