The Vostro's are Dell's "entry level" business line.  Not much different from the consumer line.

The Latitude is Dell's "workstation" commercial line.

I'm a retired LAN/WAN Network and Hardware Help Desk Manager.  If I were to buy for a business and had to chose between the two it would be the Latitude's.

Thanks for that @fireberd and would you choose the Precision over the Latitude? I'm finding the 3 year standard warranty on the Precision to be quite a persuasive argument as on most Latitudes (certainly from Dell Refurbished) you need to spend a few extra pounds to get the warranty.

Am I right in comparing the Dell business laptops to (for example) the VAG group cars - Vostro = Skoda, Latitude = VW and Precision = Audi?

(I guess XPS must be a top end VW?!)

Thanks @fireberd , you and I are quite alike in that regard, I always buy the best that I can afford (even a little bit beyond!) on the basis that, in the grander scheme of things, and extra £100-£200 for greater peace of mind is well worth it. That's why, after flirting with other hardware companies, I always come back to Dell as, in the main, their kit is solid, reliable and decent quality.

I think I'm sold on the Precisions, great spec for around £725.

Thanks for your help

I think you made the best choice.   I hope they do well for you.

Jack