I hear ya. Dream cars are always expensive (mine lottery dream car is an Audi R8)! That being said, the McLaren 650S doesn’t come with a rear wing, but it does have a spoiler.
The 650S’s active aero spoiler dynamically adjusts based on the conditions, to keep the vehicle pinned to the ground. They work best at high speeds, usually at least 60 to 70 miles per hour.
Many McLaren owners upgrade to an aftermarket wing to give the vehicle a more aggressive, sporty look. And thanks to high-end dealers, it’s possible to get an aftermarket wing that doesn’t *look** aftermarket. But, of course, it’ll cost you (around $4,000, to be exact).