In this study, it is aimed to reveal language usage differences according to socioeconomic strata. sahibinden.com is a platform where the seller can write the ad description texts originally. The language usage features in automobile ad descriptions in different value ranges on the sahibinden.com website which provides e-commerce to the customer to customer (C2C) were examined. In this study, a corpus of 7063 running words was built. The numbers of sentences, length of sentences, structures of sentences (gramatically simple/complex, syntactically nominal/verbal, syntactically inverted/regular), types of sentences, passive voice verbs, participles, gerunds, infinitives were tagged under the title of syntax in the corpus. The numbers of words, lexical diversity, adjectives, adverbs, prepositions, conjunctions, pronouns, interjections, abbreviations, use of foreign words were tagged under the title of vocabulary in the corpus. Imperatives, questions and suffixes for politeness were tagged under the title of pragmatic features in the corpus. Misspellings, punctuation mistakes and capitalization preferences were tagged under the title of other language usage features in the corpus. The numbers, dispersions and ratios of these features were determined according to socio-economic strata, social classes and linguistic codes. Socioeconomic strata were grouped as the lowest stratum, the lower stratum, the middle-lower stratum, the middle stratum, the upper stratum and the highest stratum. Social classes were grouped as the lower class, the middle class and the upper class. Linguistic codes were grouped as the restricted code and the elaborated code in the study. Similarities and differences in language use were examined between these groups. Some differences in the language use of individuals from different socioeconomic strata was determined as a result of the study. The most of the findings of the current study are parallel to the prominent researches of the sociolinguistic field.