Christo: London Mastaba; Tomma Abts – reviews

Serpentine galleries, London
Christo’s floating installation makes a big first impression, but can’t match the brilliance of Tomma Abts’s canvases

Van Gogh leggings and Tracey teacups: how art merch broke out of the gift shop

Jackson Pollock socks, Louise Bourgeois eyemasks, Guerrilla Girls air freshener … what’s behind the explosion in art merchandise – and who’s really making the money?

Ten ways to make fashion greener

Sustainable style is back on the agenda after MPs announced an inquiry into ‘fast’ clothes. This is what a greener clothing future might look like

Lamborghini Aventador: ‘One of the most awesome V12 hypercars ever built’

Open the crazy ‘scissor doors’, find the right button to spark the engine up and get set for a spooky ride, says Martin Love

Flying cars: why haven’t they taken off yet?

Despite their potential, no one has managed to take them from flight of fancy to everyday reality