Vettel added: "We all enjoy it when we get to challenge ourselves, not only ourselves but also the cars, and really get the cars to their limit and feel, once or twice, on these special types of circuits, what the cars can do.
"The corner speeds we have just through the first sector at Suzuka is very impressive. I enjoy that a lot, to feel the speed, to really get that sensation.
"It's just a great level of satisfaction and that's why it's like a drug.
"You want more and more every lap and if you have a great car which fortunately I had the last couple of years, then it's just great to go for another lap and another lap."
Belgian Grand Prix, day two
Saturday 24 August : Final practice at 09:55 BST on BBC Two, plus live text commentary online. Qualifying at 12:10 BST on BBC One plus live text commentary online
Belgian Grand Prix, day three
Sunday 25 August: Race coverage at 12:10 BST on BBC One & BBC Red Button at 13:00 BST, Radio 5 live, plus live text commentary online. F1 Forum, 15:15 BBC Red Button (IPTV only). Highlights, 19:00 BBC Three & BBC Red Button
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