4 seater with 4 door? if u're not too discerning about
performance, then actually junior exec cars ought to be fine. M5
hasn't been launched in sg yet, and even if it is launched, it will
be horribly expensive. plus, with a firmer ride, your granny prob
won't enjoy it too much. instead, I would suggest perhaps a 3
series or a C class. prob the ones with a bit of performance in
them. C230 Kompressor, or 325i SE. Audi A4 2.0T FSI can be
considered too.