Hi, I regularly use a product called showroom shine that I get from Ideal World the shopping channel. I find this does exactly what it should do without swirl marks. my car is windsor blue so is susceptible to swirls so I would notice. Just a word of caution, use sparingly and it is easy. Too much and it is hard work. Leaves a very clean car and you can even do your wheels. Spray on and use a microfibre cloth to activate. Use another microfibre cloth to buff.
Manxy