Jannik Sinner ended 2024 with the world at his feet. After claiming his first two Grand Slams, the Italian capped the year off by in front of his home fans in Turin.

The 23-year-old set the tone for an incredible year by in January, before in September. On Sunday, beat Taylor Fritz 6-4 6-4 in the final of the ATP Finals, remaining undefeated in the event in his home country.

The world No.1 worth $4.88million (£3.9m), the highest sum ever handed out for an ATP tournament, which took his career prize money up to a total of £33m. And as a self-described petrolhead, the Italian phenomenon has begun to use some of that money to amass an already-impressive car collection, which Express Sport will now examine.

Sinner has been an ambassador for luxury Italian car manufacturer Alfa Romeo for some time. He unsurprisingly chose the Stelvio Q4 as his car - a four-wheel drive vehicle known for its great performance, speed, luxury and comfort.

He owns the Veloce version, which provides higher performance, and is perfect for driving in snowy conditions - something Sinner can make use of, given that his parents live in the mountains of northern Italy. Sinner's Alfa is dark grey with leather and Alcantara interiors, and is adorned with carbon fibre finishes.

It is equipped with a 2.0-liter turbo gasoline engine with 280 horsepower, or a 2.2-liter turbo diesel engine with 210 horsepower. The car, which can accelerate from 0 to 100 km/h in less than 6 seconds and reach a top speed of over 215 km/h, can cost up to £59,000.

Sinner treated himself to an Audi RS6 ABT after winning the Australian Open - the first Grand Slam of his career. He told Vanity Fair: "The only gift I gave myself is the car (referring to his ABT modified Audi RS6). It's a nice car, but you don't think of a Ferrari, a Lamborghini or a Maserati."

Still, his Audi is by no means a slouch. It is a high-performance 740 HP V8 engine with 950 torque with a stunning track speed of 0-100 in just 3.2 seconds.

This Audi RS6 in particular has been enhanced by the famous German supercar tuner ABT, making it one of only 200 units ever modified with its design and performance upgrades. Its top speed is pegged at 199 mph (320 km/h), making it one of the fastest and most powerful station wagons in the world.

It is reported that Sinner also owns an unspecified Alpine model. Alpine is a French sports car and racing car manufacturer owned by the Renault Group, and is known for competing in Formula One since 2021.

Sinner himself is a self-confessed petrolhead and a fan of F1, saying: "It was my Dad who passed it [love of motorsport] on to me. As a child, I used to watch Formula 1 on Sundays, with my granddad. It was more difficult with my parents because they worked a lot. So, I either watched it alone or with my grandfather."

Sinner was even invited to the Ferrari base at Maranello in December 2023 and was allowed to test drive both the Ferrari Purosangue and Ferrari's high-performance SF90 Spider Assetto Fiorano, on the world-famous Autodromo di Modena Circuit.