- The report mentions the "Four-Wheel Drive Model" as a key quantitative model for sector selection and investment strategy recommendations[2][8][15] - The "Four-Wheel Drive Model" suggests focusing on sectors such as pharmaceuticals, petrochemicals, computers, electronics, automobiles, basic chemicals, and machinery equipment, identifying potential opportunities based on specific signals like "Bullish Retracement" and "Abnormal Momentum Effects"[8][15] - The model's sector recommendations are supported by recent signal dates and Sharpe ratio rankings, with examples including pharmaceuticals (signal date: 2025-07-25, Sharpe rank: 16) and petrochemicals (signal date: 2025-07-24, Sharpe rank: 28)[15]