I'm looking for a jack to be used only a couple of times a year to swap winter / summer tyres. It won't be used for any real maintenance work. the jack will be used on a RRS and possibly a Disco 3. I don't want to spend too much as it won't be used regularly, so under £50 would be good.

Any suggestions from this selection:

http://www.amazon.co.uk/s/ref=nb_sb_noss?u...lley+3+ton

I use the popular Clarke CTJ3000G (NB not the quick lift one - it's too weak) which I'd recommend.

From those, I'd suggest the SGS one (which ISTR is tried and tested): http://www.amazon.co.uk/Heavy-Duty-Trolley...lley+3+ton Doesn't quite go as high as the Clarke though.  Visiting from DISCO3.CO.UK
2006 Discovery 3 TDV6 Auto HSE Zambezi Silver

Thanks. the Clarke is over £100 and the SGS is nearly £70. I was rather hoping to sneak under £50. Am I being over-optimistic?

TBH, I think £50 would be pushing it. These are some of the heaviest cars around and have been known to bend lesser jacks so I wouldn't take any chances. It's not a huge cost in the scheme of ownership (though I know only too well how it all adds up ).  Visiting from DISCO3.CO.UK
2006 Discovery 3 TDV6 Auto HSE Zambezi Silver

Sgs one is great , there was a group buy on the Porsche forum from them for a very low one . Give them a try , see if you can get a good deal on a group buy I'll have one .
Edit . Just remembered, the jack point on a l494 is like a fin or keel

I use a forklift in work to jack mine up when I do winter tyre changes  MY10 HSE 3.0 TDV6 : Santorini Black : Ebony Interior w/Anigre wood : Privacy Glass (total) : Sunroof : Sidesteps : Hybrid TV : Detachable Tow Kit : Spare Wheel Cover : 22" Dished Supersports

I have a Halfords 3 tonne trolley jack. They sometimes come up in their sales which pushes the price down from the usual £100. So far it's been great although I did remove the quick lift pedal as I don't use it. 2012 SDV6 - it's missing a couple of cylinders
2008 TDV8 - it was a labour of love and is much missed

If you buy a trolley jack, make sure its got a high lift (at least 500mm). My old Halfords jack is OK for cars but not an RRS!

The standard jack that comes with the car is absolutely rubbish. Took forever to change a tyre by the side of the road in the rain!

Yep, anyone who values their fingers/limbs/life should not use the supplied jack.  Visiting from DISCO3.CO.UK
2006 Discovery 3 TDV6 Auto HSE Zambezi Silver