2014 GWV Legend 3500 I4
I have no data, but my Volvo XC60 starts so quickly and effortlessly that I have to assume the whole engine has been tuned for this mode of operation. I am quite sure that the starter motor sees a much lower total run time than on any of my other vehicles (admittedly not the same thing as total stress). I do know that the car has a second battery specifically for this purpose.Great until you need to replace a couple starters.
I assume that the newer models with the stoplight shutdown/restart feature have a proportionately beefed up starter system. I don't believe that the Sprinters were designed planning on that service.
Agree that Sprinters are different -- I let mine run, too.