Lenovo's flagship business laptop, the ThinkPad X1 Carbon, has reached its 8th generation, and the latest model continues to push at the boundaries of performance and portability. It sports a 14-inch screen with up to 4K (3,840 x 2,160) resolution, up to 2TB of SSD storage, and weighs a shade over 1kg. You can spend between £1,141.66 (ex. VAT; £1,369.99 inc. VAT) and £1,716.66 (ex. VAT; £2,059.99 inc. VAT) on an off-the-shelf configuration, or you can customise.
Lenovo ThinkPad X1 Carbon (8th Gen) review at ZDNet