At least we are discussing/debating speed matters in our 20-30year old classics. Before it became such a taboo subject in the last 10 years, speed of performance cars used to be something admired and respected. I remember as a child the whole family opening the windows in our crummy estate and 'ahhh ing' in harmony as a Ferrari shot up behind us and then blasted past on a back road.
Personally I think it's fantastic to know our cars are still being driven and enjoyed in the right mindset. It may have to be mainly whispered in secret nowadays but Porsche still stands for 'racing not posing' to me. Therefore any car that's pretty quick and likely to give it a try, should you meet one on the road or track, is of discussable interest to me. Even a Subaru.
Style, comfort and quality all have their place in my judgement of a car but sure as hell nothing beats that feeling when you open the taps and the car in your mirror disappears

For me the first memory that comes to mind involves a 10 min drive in a Promax level 2 250 turbo and a chance meeting with an Audi S2 who had a strong desire to pass us out of a roundabout.[

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In fact without thinking too hard about it (because YES I know), watch this clip my Skyline owning friend showed me and tell me how it makes you feel when it comes on boost:
http://www.youtube.com/watch?v=f-zXer0HPcc
..0.46 onwards, that's feeling right there.