There are several remix and tribute albums out there dedicated to remakes of great rock songs. I've collected several over the years - which include techno, industrial, classical, etc.
I'm of a mind that a cover song can NEVER be "better" than the original, simply because the premise/foundation is established by the original song that is remade. At the same time, some unique covers can really kick [censored]!
Here are 5 of my favourites:
Van Halen's "So This Is Love", by Jeff Scott Soto & Blues Saraceno with Sheep On Drugs
Led Zeppelin's "D'yer Maker", by Phil Lewis, remixed by Sheep On Drugs
Jimi Hendrix's "Purple Haze", by The Cure
U2's "Numb", by Die Krupps
Queen's "Tie Your Mother Down", Die Krupps Remix with Lemmy & Ted Nugent
What are some of your favourites?
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"Knowledge will give you power, but character, respect." - Bruce Lee