The special-edition model is powered by the most potent version of Jaguar’s four-cylinder petrol engine, the 2.0-litre Ingenium, producing 295lb ft of torque.
With drive sent to all four wheels, this enables a 0-60mph time of 5.4sec, making the car just 0.5sec slower to the mark than the V6-powered and rear-wheel-drive XE S.
The 300 Sport has bespoke design feature including dark satin trim for the door mirrors, spoiler and grille surround. The car sits on model-exclusive 19in or 20in wheels painted in the same colour.
Four body colours are offered: Yulong White, Indus Silver, Santorini Black and Caldera Red.
Inside, the XE 300 Sport has contrasting yellow stitching on the steering wheel, seats and door internals. There are also 300 Sport-branded kickplates, while the car’s floor mats and headrests are embossed with the name.
As standard, the 300 Sport gets Jaguar’s Touch Pro infotainment system with a 10.0in touchscreen.
Like the rest of petrol XE range, it features a new particulate filter that can capture ultra-fine particles and oxidise them into CO2.
The 300 Sport is available to order now, priced from £45,160, making it £3960 more expensive than the next highest-ranking XE with the 296bhp engine, the R-Sport AWD.