I watched FP1 from Australia last night. I was not pleased with the sound. Granted I've heard many other vehicles sound worse (MotoGP anyone?), but I think this is the worst F1 cars have sounded in my lifetime. A sample:

F1 2014 First Onboard Lap | Red Bull RB10 | V6 Turbo Sound | Ricciardo @ Albert Park - 14.03.2014 - YouTube

Compare to last year's naturally aspirated 2.4 L V-8:

Kimi Raikkonen Onboard Lap - Australian GP FP2 - 2013 - YouTube

Some of the technical changes they've made are interesting to me as an engineer and mechanic, but I've had farts that sounded better than the new cars.

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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 400,xxx miles
08 Suzuki GSX-R600 M4 Slip-on 22,xxx miles
88 Jaguar XJS V12 94,xxx miles. Work in progress.