All new Seat models are now available with fixed trim levels, removing the ability for customers configure their car with options.
The brand says the moves reflects changing consumer habits and simplifies the complexity of WLTP.
Certain features remain on price lists; such as an alarm, spare wheel and safety pack.
Its Easy Move system was trialled on the Arona earlier this year and met with support from customers and dealers.
All new Ibiza, Leon, Arona, and Ateca, trim levels begin with SE, and move into comfort-based Xcellence and sporty FR. There is no extra charge for metallic paint.
Easy Move brings three additional trims that cater for customers who would previously have added options: SE Technology, FR Sport and Xcelence Lux.
Mii, Alhambra and Toledo have even more compact versions of Easy Move – all with metallic paint built into the price.
Richard Harrison, director of Seat UK, said: “Everyone used to think that having loads of choice was a good thing, but in fact people find it really difficult to understand all the permutations and options when buying a new car. We realised it was time for a change and that if we can help people get to what they want in an easier way, then they will enjoy the experience more.
“We have built Easy Move by looking at what options customers want and bundling them into neat packages that are really logical to understand.”
Removing options also helps with the complexity of WLTP, where individual options can change the CO2 output of a car.
Seat is the fastest-growing volume car brand in the UK, with half-year sales up 22%.