2015 bmw 435i XDrive

With 135K miles priced at $9500 in New Jersey This is an N55 engine I believe, can someone confirm.

There are decent service records according to carfax report which is linked here - https://www.carfax.com/vehiclehistory/ar20/gCo3NruqzeCTBRLZpsiRRWbWC13Pj0FAUIlmLzujK1foxoh9lhfj-7pDXBJUR4MCRQ6IQPOnHNaOjaGZ24cFu8SVLdYKyNFM4har6LUG

Is this a good buy?