Coca-Cola has said it plans to invest aggressively in Brazil in a bid to make the country its second largest market after the US.   "Brazil will surpass Mexico in the future," said Coca-Cola vice-chairman, Brian Dyson. However, Dyson did not elaborate, giving no further details of the expected timeframe for its plans or the precise size of the investment envisaged beyond 2002. But he did say that he expected Brazil to grow at above the estimated average rate for Latin America of 5% to 6%.