// Search Database
if (query.Any())
{
    int carID = query.FirstOrDefault().Id;
    string carRegg = query.FirstOrDefault().regNo;
    string carMake = query.FirstOrDefault().Make;
    string carModel = query.FirstOrDefault().Model;
    int hourS = query1.FirstOrDefault().Hours;
    DateTime dateS = query1.FirstOrDefault().Date;

    var test = (from a in dbC.Cars
                where a.Id == carID
                join b in dbC.Services on a.Id equals b.CarId
                join c in dbC.PartsUseds on b.ServiceWrkNo equals c.ServiceServiceWrkNo
                join d in dbC.Parts on c.PartsPartNo equals d.PartNo
                where a.Id == carID && b.Date == ((from b1 in dbC.Services where b1.CarId == b.CarId select b1.Date).Max())
                select new
                       {
                           serviceNum = b.ServiceWrkNo,
                           date = b.Date,
                           PartNo = c.PartsUsedNo,
                           replacedParts = d.PartName,
                           priceP = d.Price,
                           hourS = b.Hours
                       }).ToList();

    Console.WriteLine();
    Console.WriteLine("- - - - - - - - - - - - - - - - - - - - - - - - - - - - ");
    Console.WriteLine("CAR SERVICE DETAILS: tt " + carMake + " " + carModel);
    Console.WriteLine("- - - - - - - - - - - - - - - - - - - - - - - - - - - - " + "n");

    Console.WriteLine("- - - - - - - - - - - - - - - - - - - - - - - - - - - - ");
    Console.WriteLine("LAST SERVICE TOOK PLACE ON:t " + dateS.ToShortDateString());
    Console.WriteLine("- - - - - - - - - - - - - - - - - - - - - - - - - - - - " + "n");

    Console.WriteLine("- - - - - - - - - - - - - - - - - - - - - - - - - - - - ");
    Console.WriteLine("HOURS SPENT ON THE SERVICE:t " + hourS);
    Console.WriteLine("- - - - - - - - - - - - - - - - - - - - - - - - - - - - " + "n");

    Console.WriteLine("- - - - - - - - - - - - - - - - - - - - - - - - - - - - ");
    Console.WriteLine("PARTS USED:   tttPRICE      PART");
    Console.WriteLine("- - - - - - - - - - - - - - - - - - - - - - - - - - - - " + "n");

    foreach (var item in test)
    {
        Console.WriteLine("ttt        " + item.priceP + "t   " + item.replacedParts);
    }

    Console.WriteLine("- - - - - - - - - - - - - - - - - - - - - - - - - - - - " + "n");
}

var total = test.Sum(x => x.priceP);

int carID = query.FirstOrDefault().Id;
string carRegg = query.FirstOrDefault().regNo;
string carMake = query.FirstOrDefault().Make;
string carModel = query.FirstOrDefault().Model;
int hourS = query1.FirstOrDefault().Hours;
DateTime dateS = query1.FirstOrDefault().Date;

var result = query.FirstOrDefault();
int carID = result.Id;
string carRegg = result.regNo;
string carMake = result.Make;
string carModel = result.Model;
int hourS = result.Hours;
DateTime dateS = result.Date;