https://www.cnet.com/news/oneplus-6t-mclaren-edition-does-indeed-charge-superfast/

To see if Warp Charge is indeed faster, I drained the batteries on both the 6T and the 6T McLaren Edition. When they were completely out of reserves, I plugged both phones into to power outlets using the charging bricks and cords they came packaged with. After 20 minutes of being plugged in, the 6T McLaren Edition was already nearing 50 percent power. Here's the data on how fast the phones re-upped their batteries given the time duration:

In the end, it took about 1 hour for the 6T McLaren Edition to fully charge while the original 6T clicked in at 1 hour and 25 minutes. The latter is still a prompt charge time, and Dash Charge will likely continue to be a favorite feature for OnePlus users. But if you're in a real time-crunch or just have absolutely no time to waste, you'll end up saving about 25 minutes to fully charge your phone if you go with McLaren's 6T.