Like all Porsches, there’s an extensive option list and a 54-page ordering catalog from which you can choose myriad items to customize your 2007 911 Turbo, with features ranging from ceramic composite brakes ($8,840) to the Porsche crest embroidered on the headrest ($270). It’s possible to spend tens of thousands of dollars on Porsche options, so think carefully about whether you really need a Sycamore wood steering wheel ($620) before signing your order form. One tempting item is the Sports Chrono Package Plus ($1,850), which, at the push of a button, makes all sorts of wonderful things happen, including increasing the turbo boost by 2.9 psi for 10 seconds and bumping torque by 10 percent.