screw the ambulance get one of these

An old man said when he died, he wanted to be buried in his Mog, because "No matter what happens to me, my Mog will get me out of it"

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1991 560 SEC AMG, 199k <---- 300 hp 10:1 ECE euro HV ...

1995 E 420, 170k "The Red Plum" (sold)

2015 BMW 535i xdrive awd Stage 1 DINAN, 6k, <----364 hp

1967 Mercury Cougar, 49k

2013 Jaguar XF, 20k <----340 hp Supercharged, All Wheel Drive (sold)

Forget about the ambulance? What about THIS?!!!!:

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A. Rosich
CL 500, 1998
S 500 L, 1998
E 320 T, 1995 [Sadly sold ]

Going from "running fine" to gagging and spitting, then quitting in fifteen minutes doesn't sound like sparkplugs to me.
The first thing I'd hope for is that a critical vacuum hose either broke or got pulled off its nipple. Did any of the warning lights go on? Does it have spark when it turns over? Does it have fuel? Eliminate the cheap things first.