Today, Tesla released some specs on the Model 3 as part of an anti-sell sheet for their retail operations to get people to buy Model S. There were three specs in particular that can be directly compared to the Bolt:
0-60: 5.6s (Model 3) versus 6.4s (Bolt)
Range: 215+ miles (Model 3) versus 238 (Bolt)
Cargo: 14 cu ft. (Model 3) versus 16.9 (Bolt)