Nice. I did an H4 halogen upgrade to my 300D not long ago. They don't throw any more or better light than the Sylvania Silverstars I was running before, but I anticipate longer bulb life and cheaper replacements of an H4 bulb vs. a souped up (with consequently shorter life) sealed beam.

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Whoever said there's nothing more expensive than a cheap Mercedes never had a cheap Jaguar.

83 300D Turbo with manual conversion, early W126 vented front rotors and H4 headlights 401,xxx miles
08 Suzuki GSX-R600 M4 Slip-on 26,xxx miles
88 Jaguar XJS V12 94,xxx miles. Work in progress.
99 Mazda Miata 183,xxx miles.