Chip add width & height issue

main.dart

import 'package:flutter/material.dart';

final Color darkBlue = Color.fromARGB(255, 18, 32, 47);

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      theme: ThemeData.dark().copyWith(scaffoldBackgroundColor: darkBlue),
      debugShowCheckedModeBanner: false,
      home: Scaffold(
        body: Center(
          child: MyWidget(),
        ),
      ),
    );
  }
}

class MyWidget extends StatefulWidget {
  @override
  _MyWidgetState createState() => _MyWidgetState();
}

class _MyWidgetState extends State<MyWidget> {
  @override
  Widget build(BuildContext context) {
    return Column(
      mainAxisAlignment: MainAxisAlignment.start,
      children: [
        Transform(
            transform: new Matrix4.identity()..scale(2.0),
            child: new Chip(
              label: Text('VIP', style: TextStyle(color: Colors.blue)),
              padding: const EdgeInsets.only(left: 20, right: 20),
              shape: StadiumBorder(
                  side: BorderSide(color: Colors.redAccent, width: 2.0)),
            )),
        SizedBox(height:100),
        Container(
              padding: EdgeInsets.all(10),
              child: Row(
                mainAxisAlignment: MainAxisAlignment.spaceBetween,
                children: [
                  Text(
                    "BMW 520D",
                    style: TextStyle(color: Colors.blue),
                    textAlign: TextAlign.center,
                  ),
                  Chip(
                    padding: const EdgeInsets.only(left: 30, right: 30),
                    shape: StadiumBorder(
                        side: BorderSide(color: Colors.grey, width: 0.5)),
                    label: Align(
                      alignment: Alignment.center,
                      child: Text(
                        "VIP",
                        style: TextStyle(color: Colors.blue),
                        textAlign: TextAlign.center,
                      ),
                    ),
                  ),
                ],
              ),
            ),
      ],
    );
  }
}