As an Engineer, I have to respond to 'Stupid Engineering'. That's just wrong!! Are you refering to Design Engineers, Manufacturing Engineers, what!!. These vehicles typically have Platinum plugs with 100,000 mile service intervals. The entire Engine Compartment, even the placement of the battery becomes part of the crash and safety design. Ever have to change a battery, in the Wheel well of a Chrysler!! All manufacturers want the customer to service the vehicle at their shops. Many mechanics have custom bent/built tools to do the job at less than book time. If you are fixing your own vehicle today, get used to Engines packed tightly and research the job well. Don't blame the Engineers, they design components and assemblies, but Manufacturing, Ease of Production, etc take precident.