The car owners formed a motorcade on Moscow's Garden Ring, traveling at a slow speed.
"This government resolution infringes upon our rights. People bought cars, paid high customs duties, are paying taxes, and in an hour they have become outlawed," Vyacheslav Lysakov, the leader of an informal motorist movement, said.
Russian Prime Minister Mikhail Fradkov said Friday that the recent amendments were legal, but left little time for car owners to implement them and needed to be corrected.
"I have given orders to correct these inaccuracies," he said.
"The requirements for turn signals will probably only apply to cars purchased after January 1, 2007," the premier said.
Russian Foreign Ministry spokesman Mikhail Kamynin had said earlier in the week that Russia would block imports of U.S.-made cars that do not meet requirements.
He said the idea behind the amendments was to bring national traffic laws in line with the 1968 Vienna Convention on Road Traffic, and international agreements on technical requirements for motor vehicles currently in force in Europe.
