I don't recall if the spark plug wires have resistor caps at the spark plug end, but if they go out, then NO spark. The thing is, they usually don't burn out all at once, just a wire here or there. It sure sounds like the ignition coil though...
2009 ML350 (84K) - Family vehicle
2001 CLK430 Cabriolet (71K) - Wife's car
2005 BMW 645CI (124K) - My daily driver
2012 Mustang V6 (60K) - Daughter's car