Usury price or false idea??

Hello together, since we are about to change our main car, we also want to change our second car at the same time. It is to become a smart, a diesel. The list price is about 14500€ gross. As leasing rate (36 months with 30000km/year) our smart dealer offered us 187€ gross at 250€ gross deposit. When I heard this I was really shocked about the amount of the rate! I had previously assumed the same rate during my planning but WITHOUT down payment . How do you rate this offer? Is the offer really so bad, or are my prices just completely unrealistic? I would be very happy about answers! Sebastian