Table: volvo_v70_engine_specs
Columns: model_name
power_ps
torque_nm_rpm
displacement_cm
engine_code
comment

Question: Which model has a 2521 cm displacement and b5254 t2 engine?
SQL: SELECT "model_name" FROM volvo_v70_engine_specs WHERE "displacement_cm" = 2521 AND "engine_code" = 'b5254 t2'

Question: Which engine has a 2435 cm displacement and is named 2.4 (2001-2007)?
SQL: SELECT "engine_code" FROM volvo_v70_engine_specs WHERE "displacement_cm" = 2435 AND "model_name" = '2.4 (2001-2007)'