I've seen a lot of models where the builder has gone to a lot of trouble adding every possible line, clamp, fitting and bolt...usually on race car models. But despite the builder's effort, the model looks like a model, not a real car. That's because so many of the details on a 1:1 car can't be very easily reproduced in scale. In fact, a lot of the smaller details on a full-sized car would be so tiny on a 1/25 scale model that they'd be almost invisible. And adding too much oversized, out-of-scale "details" is a common mistake lots of guys make.
Like a famous someone or other said..."less is more".