You can reach Moscow from Finland and St. Petersburg by taking the Helsinki–St. Petersburg Highway through Vyborg and St. Petersburg and continuing from there on the Moscow–St. Petersburg Highway. Using a car for getting around Moscow isn't advised, though, as driving in Russia is invariably more of a hassle than a pleasure. Roads are very poorly maintained, and many streets in the city center are one-way. Renting a car can also be much more expensive than in the U.S. To top it all off, Moscow traffic police are infamous for seeking out bribes, especially from foreigners, and they'll often demand that you pay a shtraf (fine) whether you have all the proper documents or not. If you do decide to drive, be sure to carry a notarized translation of your current license.