What new options (MSRP? and INVOICE?) will be available for the 1999.5 A4 1.8T? <p>Can I order a 1999.5 A4 1.8T with these options now, or will they be introduced later next year?<p> Specifics:<br> 1) Audi Symphony in-dash CD head unit?<br> 2) SIDEGUARD air bags?<br> 3) Electronic Stability Program (ESP)?<br> 4) HID(xenon?) headlights?<p><br>Finally, are the 5 spoke alloy wheels now standard for the A4 1.8T, and are there any changes to the Sport package for 1999?<p>Thanks.