Last week the Russian team completed a six-day test at Magny-Cours, France, with James Thompson at the wheel of the Granta Sport car.
During the test the team focused on setting up suspension, steering and engine parameters.
In September the LADA Sport Team will return to Russia to start working on the 2013 car. The name of the driver who will team up with Thompson will be announced later.
Thompson commented: "I was very happy with the way the testing went, and the team can be very proud of what they have achieved in such a short time.
"We have worked through a very long test plan, which culminated in a big step forward both in drivability and performance."
Team principal Victor Shapovalov added: "Our two outings in Hungary and Portugal earlier this year, enabled us to collect a lot of information about the car.
"Our engineers have analyzed all the issues we had, and during the summer we prepared a lot of new parts that we have tested in Magny-Cours. This test was very useful for the team and I'm very satisfied with the results.
"The car's reliability is very good, as we didn't meet with any technical issues over the six days. The car has been hugely improved, but will keep on developing it according to the plans."