D5100 and what Lens to Singapore Formula1 Grand Prix?

[Rashkae]

70-200mm is... about $3500?
That's more than 3 times of my kit!

Much much cheaper...

How about pictures like this:

(Image belongs to Stanley Yeo, referenced directly from Flickr)

Need to use monopod with the lens?

That kinda shot is easy with a 70-200, no need monopod.