The invention relates to a model training method and device, a
performance prediction method and device, equipment, a vehicle and a medium, and the method comprises the steps: obtaining a
test data set which comprises a plurality of groups of
test sample data, sequentially inputting each group of
test sample data into a preset initial model, so as to obtain a first prediction performance parameter corresponding to each group of
test sample data, acquiring
simulation performance parameters corresponding to each group of test sample data, determining prediction precision of a preset initial model according to the first prediction performance parameters and the
simulation performance parameters, and determining a target vehicle
performance prediction model according to the prediction precision and the preset initial model, the target vehicle
performance prediction model with high vehicle performance prediction precision can be effectively obtained, the vehicle performance corresponding to the vehicle design parameters can be predicted through the target vehicle performance prediction model, the determination efficiency of the vehicle design parameters can be effectively improved, the
time cost required by the vehicle from design to
machining can be effectively shortened, and the vehicle performance prediction efficiency is improved. And the design cost of a high-performance vehicle can be reduced.